56864868 has 36 divisors (see below), whose sum is σ = 136048080. Its totient is φ = 18486080.

The previous prime is 56864861. The next prime is 56864869. The reversal of 56864868 is 86846865.

It is a super-2 number, since 2×56864868² = 6467226425314848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56864868.

It is not an unprimeable number, because it can be changed into a prime (56864861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18763 + ... + 21581.

Almost surely, 2^56864868 is an apocalyptic number.

It is an amenable number.

56864868 is an abundant number, since it is smaller than the sum of its proper divisors (79183212).

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

56864868 is a wasteful number, since it uses less digits than its factorization.

56864868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908 (or 2865 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 56864868 is about 7540.8797895206. The cubic root of 56864868 is about 384.5457463624.

The spelling of 56864868 in words is "fifty-six million, eight hundred sixty-four thousand, eight hundred sixty-eight".