56708820 has 72 divisors (see below), whose sum is σ = 196594944. Its totient is φ = 12961728.

The previous prime is 56708801. The next prime is 56708843. The reversal of 56708820 is 2880765.

56708820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 23 ways as a sum of consecutive naturals, for example, 21244 + ... + 23763.

Almost surely, 2^56708820 is an apocalyptic number.

It is an amenable number.

56708820 is an abundant number, since it is smaller than the sum of its proper divisors (139886124).

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

56708820 is a wasteful number, since it uses less digits than its factorization.

56708820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45029 (or 45024 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 56708820 is about 7530.5258780513. The cubic root of 56708820 is about 384.1936685838.

The spelling of 56708820 in words is "fifty-six million, seven hundred eight thousand, eight hundred twenty".