56677765 has 16 divisors (see below), whose sum is σ = 70580736. Its totient is φ = 43646400.

The previous prime is 56677757. The next prime is 56677783. The reversal of 56677765 is 56777665.

It is not a de Polignac number, because 56677765 - 2³ = 56677757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31839 + ... + 33571.

It is an arithmetic number, because the mean of its divisors is an integer number (4411296).

Almost surely, 2^56677765 is an apocalyptic number.

It is an amenable number.

56677765 is a deficient number, since it is larger than the sum of its proper divisors (13902971).

56677765 is a wasteful number, since it uses less digits than its factorization.

56677765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

The product of its digits is 1852200, while the sum is 49.

The square root of 56677765 is about 7528.4636546908. The cubic root of 56677765 is about 384.1235248039.

The spelling of 56677765 in words is "fifty-six million, six hundred seventy-seven thousand, seven hundred sixty-five".