56922138 has 192 divisors, whose sum is σ = 167731200. Its totient is φ = 13530240.

The previous prime is 56922127. The next prime is 56922139. The reversal of 56922138 is 83122965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56922139) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 964753 + ... + 964811.

It is an arithmetic number, because the mean of its divisors is an integer number (873600).

Almost surely, 2^56922138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56922138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83865600).

56922138 is an abundant number, since it is smaller than the sum of its proper divisors (110809062).

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

56922138 is a wasteful number, since it uses less digits than its factorization.

56922138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 134 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 56922138 is about 7544.6761361903. The cubic root of 56922138 is about 384.6747981919.

The spelling of 56922138 in words is "fifty-six million, nine hundred twenty-two thousand, one hundred thirty-eight".