56680656 has 20 divisors (see below), whose sum is σ = 146425152. Its totient is φ = 18893536.

The previous prime is 56680639. The next prime is 56680661. The reversal of 56680656 is 65608665.

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, 590376 + ... + 590471.

Almost surely, 2^56680656 is an apocalyptic number.

It is an amenable number.

56680656 is an abundant number, since it is smaller than the sum of its proper divisors (89744496).

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

56680656 is a wasteful number, since it uses less digits than its factorization.

56680656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180858 (or 1180852 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 56680656 is about 7528.6556568886. The cubic root of 56680656 is about 384.1300557732.

The spelling of 56680656 in words is "fifty-six million, six hundred eighty thousand, six hundred fifty-six".