56081880 has 48 divisors (see below), whose sum is σ = 182267280. Its totient is φ = 14955072.

The previous prime is 56081873. The next prime is 56081887. The reversal of 56081880 is 8818065.

56081880 is a `hidden beast` number, since 560 + 8 + 18 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (56081873) and next prime (56081887).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56081887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77532 + ... + 78251.

It is an arithmetic number, because the mean of its divisors is an integer number (3797235).

Almost surely, 2^56081880 is an apocalyptic number.

It is an amenable number.

56081880 is an abundant number, since it is smaller than the sum of its proper divisors (126185400).

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

56081880 is a wasteful number, since it uses less digits than its factorization.

56081880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155800 (or 155793 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 56081880 is about 7488.7836128439. The cubic root of 56081880 is about 382.7726109930.

The spelling of 56081880 in words is "fifty-six million, eighty-one thousand, eight hundred eighty".