56816784 has 60 divisors (see below), whose sum is σ = 159517072. Its totient is φ = 18878400.

The previous prime is 56816779. The next prime is 56816791. The reversal of 56816784 is 48761865.

It is a happy number.

56816784 is a `hidden beast` number, since 568 + 1 + 6 + 7 + 84 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81879 + ... + 82569.

Almost surely, 2^56816784 is an apocalyptic number.

It is an amenable number.

56816784 is an abundant number, since it is smaller than the sum of its proper divisors (102700288).

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

56816784 is a wasteful number, since it uses less digits than its factorization.

56816784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1267 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 56816784 is about 7537.6908931051. The cubic root of 56816784 is about 384.4373272715.

It can be divided in two parts, 56816 and 784, that added together give a square (57600 = 240²).

The spelling of 56816784 in words is "fifty-six million, eight hundred sixteen thousand, seven hundred eighty-four".