56057550 has 24 divisors (see below), whose sum is σ = 139023096. Its totient is φ = 14948640.

The previous prime is 56057549. The next prime is 56057563. The reversal of 56057550 is 5575065.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 186709 + ... + 187008.

It is an arithmetic number, because the mean of its divisors is an integer number (5792629).

Almost surely, 2^56057550 is an apocalyptic number.

56057550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56057550 is an abundant number, since it is smaller than the sum of its proper divisors (82965546).

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

56057550 is a wasteful number, since it uses less digits than its factorization.

56057550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373732 (or 373727 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 56057550 is about 7487.1590072604. The cubic root of 56057550 is about 382.7172502437.

The spelling of 56057550 in words is "fifty-six million, fifty-seven thousand, five hundred fifty".