56845980 has 36 divisors (see below), whose sum is σ = 172433352. Its totient is φ = 15158880.

The previous prime is 56845979. The next prime is 56846047. The reversal of 56845980 is 8954865.

56845980 is a `hidden beast` number, since 56 + 8 + 4 + 598 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157726 + ... + 158085.

Almost surely, 2^56845980 is an apocalyptic number.

It is an amenable number.

56845980 is an abundant number, since it is smaller than the sum of its proper divisors (115587372).

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

56845980 is a wasteful number, since it uses less digits than its factorization.

56845980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315826 (or 315821 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 56845980 is about 7539.6273117443. The cubic root of 56845980 is about 384.5031652712.

It can be divided in two parts, 5684 and 5980, that added together give a square (11664 = 108²).

The spelling of 56845980 in words is "fifty-six million, eight hundred forty-five thousand, nine hundred eighty".