56133550 has 24 divisors (see below), whose sum is σ = 113901192. Its totient is φ = 20412000.

The previous prime is 56133527. The next prime is 56133587. The reversal of 56133550 is 5533165.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50481 + ... + 51580.

It is an arithmetic number, because the mean of its divisors is an integer number (4745883).

Almost surely, 2^56133550 is an apocalyptic number.

56133550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56133550 is an abundant number, since it is smaller than the sum of its proper divisors (57767642).

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

56133550 is a wasteful number, since it uses less digits than its factorization.

56133550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102084 (or 102079 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 56133550 is about 7492.2326445460. The cubic root of 56133550 is about 382.8901283915.

The spelling of 56133550 in words is "fifty-six million, one hundred thirty-three thousand, five hundred fifty".