56688788 has 12 divisors (see below), whose sum is σ = 106836660. Its totient is φ = 26164032.

The previous prime is 56688757. The next prime is 56688811. The reversal of 56688788 is 88788665.

It can be written as a sum of positive squares in 2 ways, for example, as 3952144 + 52736644 = 1988^2 + 7262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545033 + ... + 545136.

It is an arithmetic number, because the mean of its divisors is an integer number (8903055).

Almost surely, 2^56688788 is an apocalyptic number.

It is an amenable number.

56688788 is a deficient number, since it is larger than the sum of its proper divisors (50147872).

56688788 is a wasteful number, since it uses less digits than its factorization.

56688788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090186 (or 1090184 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The square root of 56688788 is about 7529.1957073780. The cubic root of 56688788 is about 384.1484253338.

The spelling of 56688788 in words is "fifty-six million, six hundred eighty-eight thousand, seven hundred eighty-eight".