56385080 has 32 divisors (see below), whose sum is σ = 127103040. Its totient is φ = 22512000.

The previous prime is 56385053. The next prime is 56385089. The reversal of 56385080 is 8058365.

It is a Cunningham number, because it is equal to 7509²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 56385080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56385089) 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, 29102 + ... + 30978.

It is an arithmetic number, because the mean of its divisors is an integer number (3971970).

Almost surely, 2^56385080 is an apocalyptic number.

It is an amenable number.

56385080 is an abundant number, since it is smaller than the sum of its proper divisors (70717960).

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

56385080 is a wasteful number, since it uses less digits than its factorization.

56385080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 56385080 is about 7508.9999334132. Note that the first 4 decimals coincide. The cubic root of 56385080 is about 383.4611764307.

The spelling of 56385080 in words is "fifty-six million, three hundred eighty-five thousand, eighty".