56288565 has 24 divisors (see below), whose sum is σ = 100933560. Its totient is φ = 28984704.

The previous prime is 56288549. The next prime is 56288579. The reversal of 56288565 is 56588265.

56288565 is a `hidden beast` number, since 5 + 6 + 2 + 88 + 565 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1912689 + 54375876 = 1383^2 + 7374^2 .

It is not a de Polignac number, because 56288565 - 2⁴ = 56288549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56288565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20262 + ... + 22871.

It is an arithmetic number, because the mean of its divisors is an integer number (4205565).

Almost surely, 2^56288565 is an apocalyptic number.

It is an amenable number.

56288565 is a deficient number, since it is larger than the sum of its proper divisors (44644995).

56288565 is a wasteful number, since it uses less digits than its factorization.

56288565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43173 (or 43170 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 56288565 is about 7502.5705594816. The cubic root of 56288565 is about 383.2422598177.

The spelling of 56288565 in words is "fifty-six million, two hundred eighty-eight thousand, five hundred sixty-five".