56558868 has 12 divisors (see below), whose sum is σ = 131970720. Its totient is φ = 18852952.

The previous prime is 56558851. The next prime is 56558869. The reversal of 56558868 is 86885565.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 56558868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356608 + ... + 2356631.

It is an arithmetic number, because the mean of its divisors is an integer number (10997560).

Almost surely, 2^56558868 is an apocalyptic number.

It is an amenable number.

56558868 is an abundant number, since it is smaller than the sum of its proper divisors (75411852).

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

56558868 is a wasteful number, since it uses less digits than its factorization.

56558868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713246 (or 4713244 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 51.

The square root of 56558868 is about 7520.5630108390. The cubic root of 56558868 is about 383.8547356361.

The spelling of 56558868 in words is "fifty-six million, five hundred fifty-eight thousand, eight hundred sixty-eight".