56564157 has 16 divisors (see below), whose sum is σ = 83417600. Its totient is φ = 33867072.

The previous prime is 56564099. The next prime is 56564177. The reversal of 56564157 is 75146565.

It is not a de Polignac number, because 56564157 - 2⁶ = 56564093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56564177) 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 15 ways as a sum of consecutive naturals, for example, 18157 + ... + 21042.

It is an arithmetic number, because the mean of its divisors is an integer number (5213600).

Almost surely, 2^56564157 is an apocalyptic number.

It is an amenable number.

56564157 is a deficient number, since it is larger than the sum of its proper divisors (26853443).

56564157 is a wasteful number, since it uses less digits than its factorization.

56564157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39252.

The product of its digits is 126000, while the sum is 39.

The square root of 56564157 is about 7520.9146385264. The cubic root of 56564157 is about 383.8667004230.

The spelling of 56564157 in words is "fifty-six million, five hundred sixty-four thousand, one hundred fifty-seven".