56909799 has 12 divisors (see below), whose sum is σ = 82272112. Its totient is φ = 37908000.

The previous prime is 56909791. The next prime is 56909813. The reversal of 56909799 is 99790965.

56909799 is a `hidden beast` number, since 569 + 0 + 9 + 79 + 9 = 666.

It is not a de Polignac number, because 56909799 - 2³ = 56909791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56909791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14454 + ... + 17964.

Almost surely, 2^56909799 is an apocalyptic number.

56909799 is a deficient number, since it is larger than the sum of its proper divisors (25362313).

56909799 is a wasteful number, since it uses less digits than its factorization.

56909799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5315 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 56909799 is about 7543.8583629334. The cubic root of 56909799 is about 384.6470008913.

The spelling of 56909799 in words is "fifty-six million, nine hundred nine thousand, seven hundred ninety-nine".