56136518 has 16 divisors (see below), whose sum is σ = 88966080. Its totient is φ = 26522496.

The previous prime is 56136497. The next prime is 56136523. The reversal of 56136518 is 81563165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7571 + ... + 13022.

It is an arithmetic number, because the mean of its divisors is an integer number (5560380).

Almost surely, 2^56136518 is an apocalyptic number.

56136518 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56136518 is a deficient number, since it is larger than the sum of its proper divisors (32829562).

56136518 is a wasteful number, since it uses less digits than its factorization.

56136518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20671.

The product of its digits is 21600, while the sum is 35.

The square root of 56136518 is about 7492.4307137270. The cubic root of 56136518 is about 382.8968765713.

The spelling of 56136518 in words is "fifty-six million, one hundred thirty-six thousand, five hundred eighteen".