56565516 has 24 divisors (see below), whose sum is σ = 150841600. Its totient is φ = 16161552.

The previous prime is 56565503. The next prime is 56565517. The reversal of 56565516 is 61556565.

It is not an unprimeable number, because it can be changed into a prime (56565517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336616 + ... + 336783.

Almost surely, 2^56565516 is an apocalyptic number.

It is an amenable number.

56565516 is an abundant number, since it is smaller than the sum of its proper divisors (94276084).

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

56565516 is a wasteful number, since it uses less digits than its factorization.

56565516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673413 (or 673411 counting only the distinct ones).

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

The square root of 56565516 is about 7521.0049860374. The cubic root of 56565516 is about 383.8697746353.

The spelling of 56565516 in words is "fifty-six million, five hundred sixty-five thousand, five hundred sixteen".