56631908 has 6 divisors (see below), whose sum is σ = 99105846. Its totient is φ = 28315952.

The previous prime is 56631907. The next prime is 56631961. The reversal of 56631908 is 80913665.

It can be written as a sum of positive squares in only one way, i.e., 35545444 + 21086464 = 5962^2 + 4592^2 .

It is not an unprimeable number, because it can be changed into a prime (56631907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7078985 + ... + 7078992.

It is an arithmetic number, because the mean of its divisors is an integer number (16517641).

Almost surely, 2^56631908 is an apocalyptic number.

It is an amenable number.

56631908 is a deficient number, since it is larger than the sum of its proper divisors (42473938).

56631908 is a wasteful number, since it uses less digits than its factorization.

56631908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157981 (or 14157979 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 56631908 is about 7525.4174635033. The cubic root of 56631908 is about 384.0199009507.

The spelling of 56631908 in words is "fifty-six million, six hundred thirty-one thousand, nine hundred eight".