56563980 has 48 divisors (see below), whose sum is σ = 172779264. Its totient is φ = 13712320.

The previous prime is 56563979. The next prime is 56563987. The reversal of 56563980 is 8936565.

56563980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56563987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42192 + ... + 43511.

It is an arithmetic number, because the mean of its divisors is an integer number (3599568).

Almost surely, 2^56563980 is an apocalyptic number.

It is an amenable number.

56563980 is an abundant number, since it is smaller than the sum of its proper divisors (116215284).

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

56563980 is a wasteful number, since it uses less digits than its factorization.

56563980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85726 (or 85724 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 56563980 is about 7520.9028713313. The cubic root of 56563980 is about 383.8663000253.

The spelling of 56563980 in words is "fifty-six million, five hundred sixty-three thousand, nine hundred eighty".