56631808 has 20 divisors (see below), whose sum is σ = 113154030. Its totient is φ = 28315648.

The previous prime is 56631803. The next prime is 56631821. The reversal of 56631808 is 80813665.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 19079424 = 6128^2 + 4368^2 .

It is not an unprimeable number, because it can be changed into a prime (56631803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54793 + ... + 55816.

Almost surely, 2^56631808 is an apocalyptic number.

It is an amenable number.

56631808 is a deficient number, since it is larger than the sum of its proper divisors (56522222).

56631808 is an equidigital number, since it uses as much as digits as its factorization.

56631808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110627 (or 110611 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 56631808 is about 7525.4108193507. The cubic root of 56631808 is about 384.0196749178.

The spelling of 56631808 in words is "fifty-six million, six hundred thirty-one thousand, eight hundred eight".