56165784 has 16 divisors (see below), whose sum is σ = 140414520. Its totient is φ = 18721920.

The previous prime is 56165749. The next prime is 56165803. The reversal of 56165784 is 48756165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170097 + ... + 1170144.

Almost surely, 2^56165784 is an apocalyptic number.

It is an amenable number.

56165784 is an abundant number, since it is smaller than the sum of its proper divisors (84248736).

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

56165784 is a wasteful number, since it uses less digits than its factorization.

56165784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340250 (or 2340246 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 56165784 is about 7494.3834969929. The cubic root of 56165784 is about 382.9634043481.

The spelling of 56165784 in words is "fifty-six million, one hundred sixty-five thousand, seven hundred eighty-four".