56565396 has 36 divisors (see below), whose sum is σ = 143791284. Its totient is φ = 18748800.

The previous prime is 56565391. The next prime is 56565433. The reversal of 56565396 is 69356565.

56565396 is a `hidden beast` number, since 56 + 565 + 39 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19184400 + 37380996 = 4380^2 + 6114^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56565391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2176 + ... + 10856.

Almost surely, 2^56565396 is an apocalyptic number.

It is an amenable number.

56565396 is an abundant number, since it is smaller than the sum of its proper divisors (87225888).

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

56565396 is a wasteful number, since it uses less digits than its factorization.

56565396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8872 (or 8867 counting only the distinct ones).

The product of its digits is 729000, while the sum is 45.

The square root of 56565396 is about 7520.9970083760. The cubic root of 56565396 is about 383.8695031836.

Adding to 56565396 its sum of digits (45), we get a square (56565441 = 7521²).

The spelling of 56565396 in words is "fifty-six million, five hundred sixty-five thousand, three hundred ninety-six".