56322921 has 24 divisors (see below), whose sum is σ = 80458560. Its totient is φ = 35037952.

The previous prime is 56322919. The next prime is 56322977. The reversal of 56322921 is 12922365.

It is not a de Polignac number, because 56322921 - 2¹ = 56322919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56322911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144595 + ... + 144983.

It is an arithmetic number, because the mean of its divisors is an integer number (3352440).

Almost surely, 2^56322921 is an apocalyptic number.

56322921 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56322921 is a deficient number, since it is larger than the sum of its proper divisors (24135639).

56322921 is a wasteful number, since it uses less digits than its factorization.

56322921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 576 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 56322921 is about 7504.8598254731. The cubic root of 56322921 is about 383.3202152201.

The spelling of 56322921 in words is "fifty-six million, three hundred twenty-two thousand, nine hundred twenty-one".