51875904 has 56 divisors (see below), whose sum is σ = 137899648. Its totient is φ = 17210880.

The previous prime is 51875861. The next prime is 51875911. The reversal of 51875904 is 40957815.

It is a super-2 number, since 2×51875904² = 5382218831634432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51534 + ... + 52530.

Almost surely, 2^51875904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51875904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68949824).

51875904 is an abundant number, since it is smaller than the sum of its proper divisors (86023744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51875904 is a wasteful number, since it uses less digits than its factorization.

51875904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51875904 is about 7202.4929017667. The cubic root of 51875904 is about 372.9539626976.

The spelling of 51875904 in words is "fifty-one million, eight hundred seventy-five thousand, nine hundred four".