56320055 has 24 divisors (see below), whose sum is σ = 74973696. Its totient is φ = 40582080.

The previous prime is 56320051. The next prime is 56320073. The reversal of 56320055 is 55002365.

It is not a de Polignac number, because 56320055 - 2² = 56320051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56320051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76469 + ... + 77201.

It is an arithmetic number, because the mean of its divisors is an integer number (3123904).

Almost surely, 2^56320055 is an apocalyptic number.

56320055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56320055 is a deficient number, since it is larger than the sum of its proper divisors (18653641).

56320055 is a wasteful number, since it uses less digits than its factorization.

56320055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 56320055 is about 7504.6688801039. The cubic root of 56320055 is about 383.3137133415.

The spelling of 56320055 in words is "fifty-six million, three hundred twenty thousand, fifty-five".