56564158 has 32 divisors (see below), whose sum is σ = 99072000. Its totient is φ = 23721984.

The previous prime is 56564099. The next prime is 56564177. The reversal of 56564158 is 85146565.

It is a self number, because there is not a number n which added to its sum of digits gives 56564158.

It is a congruent number.

It is an unprimeable number.

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, 219966 + ... + 220222.

It is an arithmetic number, because the mean of its divisors is an integer number (3096000).

Almost surely, 2^56564158 is an apocalyptic number.

56564158 is a deficient number, since it is larger than the sum of its proper divisors (42507842).

56564158 is a wasteful number, since it uses less digits than its factorization.

56564158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its digits is 144000, while the sum is 40.

The square root of 56564158 is about 7520.9147050076. The cubic root of 56564158 is about 383.8667026852.

The spelling of 56564158 in words is "fifty-six million, five hundred sixty-four thousand, one hundred fifty-eight".