51900050 has 12 divisors (see below), whose sum is σ = 96534186. Its totient is φ = 20760000.

The previous prime is 51900049. The next prime is 51900061. The reversal of 51900050 is 5000915.

It can be written as a sum of positive squares in 3 ways, for example, as 46144849 + 5755201 = 6793^2 + 2399^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51899995 and 51900031.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 518951 + ... + 519050.

Almost surely, 2^51900050 is an apocalyptic number.

51900050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51900050 is a deficient number, since it is larger than the sum of its proper divisors (44634136).

51900050 is a wasteful number, since it uses less digits than its factorization.

51900050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038013 (or 1038008 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 51900050 is about 7204.1689319449. The cubic root of 51900050 is about 373.0118183932.

Adding to 51900050 its reverse (5000915), we get a palindrome (56900965).

The spelling of 51900050 in words is "fifty-one million, nine hundred thousand, fifty".