56995920 has 80 divisors (see below), whose sum is σ = 196326720. Its totient is φ = 15198336.

The previous prime is 56995919. The next prime is 56995921. The reversal of 56995920 is 2959965.

56995920 is a `hidden beast` number, since 56 + 9 + 9 + 592 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56995919) and next prime (56995921).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56995921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11034 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (2454084).

Almost surely, 2^56995920 is an apocalyptic number.

It is an amenable number.

56995920 is an abundant number, since it is smaller than the sum of its proper divisors (139330800).

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

56995920 is a wasteful number, since it uses less digits than its factorization.

56995920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26409 (or 26397 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 56995920 is about 7549.5642258345. The cubic root of 56995920 is about 384.8409305199.

The spelling of 56995920 in words is "fifty-six million, nine hundred ninety-five thousand, nine hundred twenty".