50,000 (fifty thousand) is the natural number that comes after 49,999 and before 50,001.

Selected numbers in the range 50001–59999

50001 to 50999

50069 = 11 + 22 + 33 + 44 + 55 + 66 50400 = 27th highly composite number 50625 = 154, smallest fourth power that can be expressed as the sum of only five distinct fourth powers, palindromic in base 14 (1464114) 50653 = 373, palindromic in base 6 (10303016)

51000 to 51999 51076 = 2262, palindromic in base 15 (1020115) 51641 = Markov number 51984 = 2282 = 373 + 113, the smallest square to the sum of only five distinct fourth powers.

52000 to 52999 52488 = 3-smooth number 52633 = Carmichael number 53000 to 53999 53016 = pentagonal pyramidal number 53174 = number of partitions of 42 53361 = 2312 sum of the cubes of the first 21 positive integers

54000 to 54999 54688 = 2-automorphic number 54748 = narcissistic number 54872 = 383, palindromic in base 9 (832389) 54901 = chiliagonal number

55000 to 55999 55296 = 3-smooth number 55440 = the 9th superior highly composite number; the 9th colossally abundant number, the 28th highly composite number. 55459 = one of five remaining Seventeen or Bust numbers in the Sierpinski problem 55860 = harmonic divisor number 55987 = repunit prime in base 6

56000 to 56999 56011 = Wedderburn-Etherington number 56092 = the number of groups of order 256, see 56169 = 2372, palindromic in octal (155518) 56448 = pentagonal pyramidal number

57000 to 57999 57121 = 2392, palindromic in base 14 (16B6114)

58000 to 58999 58081 = 2412, palindromic in base 15 (1232115) 58367 = smallest integer that cannot be expressed as a sum of fewer than 1079 tenth powers 58786 = Catalan number 58800 = initial number of first century xx00 to xx99 containing as few as three prime numbers {58831, 58889, 58897} 58921 = Friedman prime

59000 to 59999 59049 = 2432 = 95 = 310 59051 = Friedman prime 59053 = Friedman prime 59081 = Zeisel number 59263 = Friedman prime 59273 = Friedman prime 59536 = 2442, palindromic in base 11 (4080411)

Primes There are 924 prime numbers between 50000 and 60000.

References