56515888 has 80 divisors (see below), whose sum is σ = 136303776. Its totient is φ = 22302720.

The previous prime is 56515859. The next prime is 56515897. The reversal of 56515888 is 88851565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38170 + ... + 39622.

Almost surely, 2^56515888 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 56515888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68151888).

56515888 is an abundant number, since it is smaller than the sum of its proper divisors (79787888).

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

56515888 is a wasteful number, since it uses less digits than its factorization.

56515888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1496 counting only the distinct ones).

The product of its digits is 384000, while the sum is 46.

The square root of 56515888 is about 7517.7049689383. The cubic root of 56515888 is about 383.7574785189.

The spelling of 56515888 in words is "fifty-six million, five hundred fifteen thousand, eight hundred eighty-eight".