56711550 has 48 divisors (see below), whose sum is σ = 160739712. Its totient is φ = 12962400.

The previous prime is 56711549. The next prime is 56711573. The reversal of 56711550 is 5511765.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25956 + ... + 28055.

It is an arithmetic number, because the mean of its divisors is an integer number (3348744).

Almost surely, 2^56711550 is an apocalyptic number.

56711550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56711550 is an abundant number, since it is smaller than the sum of its proper divisors (104028162).

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

56711550 is a wasteful number, since it uses less digits than its factorization.

56711550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54033 (or 54028 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 56711550 is about 7530.7071381113. The cubic root of 56711550 is about 384.1998335971.

The spelling of 56711550 in words is "fifty-six million, seven hundred eleven thousand, five hundred fifty".