56135187 has 14 divisors (see below), whose sum is σ = 84165372. Its totient is φ = 37422972.

The previous prime is 56135171. The next prime is 56135197. The reversal of 56135187 is 78153165.

It is not a de Polignac number, because 56135187 - 2⁴ = 56135171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56135117) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 37773 + ... + 39230.

Almost surely, 2^56135187 is an apocalyptic number.

56135187 is a deficient number, since it is larger than the sum of its proper divisors (28030185).

56135187 is an frugal number, since it uses more digits than its factorization.

56135187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77021 (or 77006 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 56135187 is about 7492.3418902236. The cubic root of 56135187 is about 382.8938503786.

The spelling of 56135187 in words is "fifty-six million, one hundred thirty-five thousand, one hundred eighty-seven".