56165565 has 8 divisors (see below), whose sum is σ = 89864928. Its totient is φ = 29954960.

The previous prime is 56165537. The next prime is 56165573. The reversal of 56165565 is 56556165.

56165565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56165565 - 2⁵ = 56165533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872171 + ... + 1872200.

It is an arithmetic number, because the mean of its divisors is an integer number (11233116).

Almost surely, 2^56165565 is an apocalyptic number.

It is an amenable number.

56165565 is a deficient number, since it is larger than the sum of its proper divisors (33699363).

56165565 is a wasteful number, since it uses less digits than its factorization.

56165565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744379.

The product of its digits is 135000, while the sum is 39.

The square root of 56165565 is about 7494.3688860370. The cubic root of 56165565 is about 382.9629066009.

The spelling of 56165565 in words is "fifty-six million, one hundred sixty-five thousand, five hundred sixty-five".