56776916 has 12 divisors (see below), whose sum is σ = 113553888. Its totient is φ = 24332952.

The previous prime is 56776879. The next prime is 56776943. The reversal of 56776916 is 61967765.

It is a happy number.

56776916 is an admirable number.

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, 1013846 + ... + 1013901.

It is an arithmetic number, because the mean of its divisors is an integer number (9462824).

Almost surely, 2^56776916 is an apocalyptic number.

It is an amenable number.

56776916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56776916 is a wasteful number, since it uses less digits than its factorization.

56776916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027758 (or 2027756 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 56776916 is about 7535.0458525479. The cubic root of 56776916 is about 384.3473871014.

The spelling of 56776916 in words is "fifty-six million, seven hundred seventy-six thousand, nine hundred sixteen".