56755556 has 24 divisors (see below), whose sum is σ = 116687424. Its totient is φ = 23813280.

The previous prime is 56755553. The next prime is 56755579. The reversal of 56755556 is 65555765.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (56755553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49040 + ... + 50183.

It is an arithmetic number, because the mean of its divisors is an integer number (4861976).

Almost surely, 2^56755556 is an apocalyptic number.

It is an amenable number.

56755556 is an abundant number, since it is smaller than the sum of its proper divisors (59931868).

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

56755556 is a wasteful number, since it uses less digits than its factorization.

56755556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99251 (or 99249 counting only the distinct ones).

The product of its digits is 787500, while the sum is 44.

The square root of 56755556 is about 7533.6283423062. The cubic root of 56755556 is about 384.2991827107.

The spelling of 56755556 in words is "fifty-six million, seven hundred fifty-five thousand, five hundred fifty-six".