56281880 has 16 divisors (see below), whose sum is σ = 126634320. Its totient is φ = 22512736.

The previous prime is 56281877. The next prime is 56281903. The reversal of 56281880 is 8818265.

56281880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703484 + ... + 703563.

It is an arithmetic number, because the mean of its divisors is an integer number (7914645).

Almost surely, 2^56281880 is an apocalyptic number.

It is an amenable number.

56281880 is an abundant number, since it is smaller than the sum of its proper divisors (70352440).

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

56281880 is a wasteful number, since it uses less digits than its factorization.

56281880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407058 (or 1407054 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 56281880 is about 7502.1250322825. The cubic root of 56281880 is about 383.2270875476.

The spelling of 56281880 in words is "fifty-six million, two hundred eighty-one thousand, eight hundred eighty".