56599565 has 12 divisors (see below), whose sum is σ = 74656092. Its totient is φ = 41162880.

The previous prime is 56599559. The next prime is 56599589.

56599565 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 27071209 + 29528356 = 5203^2 + 5434^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56599565 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 11 ways as a sum of consecutive naturals, for example, 46172 + ... + 47381.

It is an arithmetic number, because the mean of its divisors is an integer number (6221341).

Almost surely, 2^56599565 is an apocalyptic number.

56599565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56599565 is a deficient number, since it is larger than the sum of its proper divisors (18056527).

56599565 is a wasteful number, since it uses less digits than its factorization.

56599565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93580 (or 93569 counting only the distinct ones).

The product of its digits is 1822500, while the sum is 50.

The square root of 56599565 is about 7523.2682392694. The cubic root of 56599565 is about 383.9467812713.

The spelling of 56599565 in words is "fifty-six million, five hundred ninety-nine thousand, five hundred sixty-five".