56621608 has 16 divisors (see below), whose sum is σ = 106276500. Its totient is φ = 28281216.

The previous prime is 56621573. The next prime is 56621623. The reversal of 56621608 is 80612665.

It can be written as a sum of positive squares in 2 ways, for example, as 50381604 + 6240004 = 7098^2 + 2498^2 .

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, 5898 + ... + 12166.

Almost surely, 2^56621608 is an apocalyptic number.

It is an amenable number.

56621608 is a deficient number, since it is larger than the sum of its proper divisors (49654892).

56621608 is a wasteful number, since it uses less digits than its factorization.

56621608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404 (or 7400 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 56621608 is about 7524.7330849672. The cubic root of 56621608 is about 383.9966181704.

The spelling of 56621608 in words is "fifty-six million, six hundred twenty-one thousand, six hundred eight".