56515938 has 16 divisors (see below), whose sum is σ = 113221920. Its totient is φ = 18806976.

The previous prime is 56515897. The next prime is 56515961. The reversal of 56515938 is 83951565.

It is a self number, because there is not a number n which added to its sum of digits gives 56515938.

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, 3895 + ... + 11322.

It is an arithmetic number, because the mean of its divisors is an integer number (7076370).

Almost surely, 2^56515938 is an apocalyptic number.

56515938 is an abundant number, since it is smaller than the sum of its proper divisors (56705982).

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

56515938 is a wasteful number, since it uses less digits than its factorization.

56515938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841.

The product of its digits is 162000, while the sum is 42.

The square root of 56515938 is about 7517.7082944206. The cubic root of 56515938 is about 383.7575916899.

The spelling of 56515938 in words is "fifty-six million, five hundred fifteen thousand, nine hundred thirty-eight".