56136618 has 32 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 17611200.

The previous prime is 56136617. The next prime is 56136631. The reversal of 56136618 is 81663165.

It is a happy number.

56136618 is a `hidden beast` number, since 5 + 6 + 1 + 36 + 618 = 666.

56136618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56136611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29658 + ... + 31493.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^56136618 is an apocalyptic number.

56136618 is an abundant number, since it is smaller than the sum of its proper divisors (75951702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56136618 is a wasteful number, since it uses less digits than its factorization.

56136618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61179 (or 61173 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 56136618 is about 7492.4373871258. The cubic root of 56136618 is about 382.8971039318.

The spelling of 56136618 in words is "fifty-six million, one hundred thirty-six thousand, six hundred eighteen".