56564613 has 48 divisors (see below), whose sum is σ = 98641920. Its totient is φ = 30536352.

The previous prime is 56564597. The next prime is 56564617. The reversal of 56564613 is 31646565.

56564613 is a `hidden beast` number, since 5 + 6 + 5 + 646 + 1 + 3 = 666.

It is not a de Polignac number, because 56564613 - 2⁴ = 56564597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56564617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149058 + ... + 149436.

It is an arithmetic number, because the mean of its divisors is an integer number (2055040).

Almost surely, 2^56564613 is an apocalyptic number.

It is an amenable number.

56564613 is a deficient number, since it is larger than the sum of its proper divisors (42077307).

56564613 is a wasteful number, since it uses less digits than its factorization.

56564613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 56564613 is about 7520.9449539270. The cubic root of 56564613 is about 383.8677319523.

The spelling of 56564613 in words is "fifty-six million, five hundred sixty-four thousand, six hundred thirteen".