56921292 has 72 divisors (see below), whose sum is σ = 150566416. Its totient is φ = 18802368.

The previous prime is 56921269. The next prime is 56921303. The reversal of 56921292 is 29212965.

It is a happy number.

56921292 is a `hidden beast` number, since 569 + 2 + 1 + 2 + 92 = 666.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152418 + ... + 152790.

Almost surely, 2^56921292 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 56921292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75283208).

56921292 is an abundant number, since it is smaller than the sum of its proper divisors (93645124).

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

56921292 is a wasteful number, since it uses less digits than its factorization.

56921292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 535 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 56921292 is about 7544.6200699571. The cubic root of 56921292 is about 384.6728924512.

The spelling of 56921292 in words is "fifty-six million, nine hundred twenty-one thousand, two hundred ninety-two".