56502920 has 64 divisors (see below), whose sum is σ = 131725440. Its totient is φ = 21798400.

The previous prime is 56502913. The next prime is 56502937. The reversal of 56502920 is 2920565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214709 + ... + 214971.

It is an arithmetic number, because the mean of its divisors is an integer number (2058210).

Almost surely, 2^56502920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56502920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65862720).

56502920 is an abundant number, since it is smaller than the sum of its proper divisors (75222520).

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

56502920 is a wasteful number, since it uses less digits than its factorization.

56502920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 56502920 is about 7516.8424221877. The cubic root of 56502920 is about 383.7281242503.

The spelling of 56502920 in words is "fifty-six million, five hundred two thousand, nine hundred twenty".