56605655 has 16 divisors (see below), whose sum is σ = 72148320. Its totient is φ = 42513408.

The previous prime is 56605649. The next prime is 56605697. The reversal of 56605655 is 55650665.

It is a happy number.

56605655 is nontrivially palindromic in base 4.

It is a cyclic number.

It is not a de Polignac number, because 56605655 - 2⁴ = 56605639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8099 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (4509270).

Almost surely, 2^56605655 is an apocalyptic number.

56605655 is a deficient number, since it is larger than the sum of its proper divisors (15542665).

56605655 is a wasteful number, since it uses less digits than its factorization.

56605655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 56605655 is about 7523.6729726909. The cubic root of 56605655 is about 383.9605514127.

The spelling of 56605655 in words is "fifty-six million, six hundred five thousand, six hundred fifty-five".