56540136 has 64 divisors (see below), whose sum is σ = 144648000. Its totient is φ = 18413568.

The previous prime is 56540131. The next prime is 56540173. The reversal of 56540136 is 63104565.

It is not an unprimeable number, because it can be changed into a prime (56540131) by changing a digit.

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, 346791 + ... + 346953.

It is an arithmetic number, because the mean of its divisors is an integer number (2260125).

Almost surely, 2^56540136 is an apocalyptic number.

It is an amenable number.

56540136 is an abundant number, since it is smaller than the sum of its proper divisors (88107864).

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

56540136 is a wasteful number, since it uses less digits than its factorization.

56540136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56540136 is about 7519.3175222223. The cubic root of 56540136 is about 383.8123540662.

The spelling of 56540136 in words is "fifty-six million, five hundred forty thousand, one hundred thirty-six".