56055520 has 24 divisors (see below), whose sum is σ = 132431544. Its totient is φ = 22422144.

The previous prime is 56055469. The next prime is 56055583. The reversal of 56055520 is 2555065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175014 + ... + 175333.

It is an arithmetic number, because the mean of its divisors is an integer number (5517981).

Almost surely, 2^56055520 is an apocalyptic number.

It is an amenable number.

56055520 is an abundant number, since it is smaller than the sum of its proper divisors (76376024).

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

56055520 is a wasteful number, since it uses less digits than its factorization.

56055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350362 (or 350354 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 56055520 is about 7487.0234405937. The cubic root of 56055520 is about 382.7126304355.

The spelling of 56055520 in words is "fifty-six million, fifty-five thousand, five hundred twenty".