56832138 has 64 divisors (see below), whose sum is σ = 138695040. Its totient is φ = 17107200.

The previous prime is 56832137. The next prime is 56832151. The reversal of 56832138 is 83123865.

It is not an unprimeable number, because it can be changed into a prime (56832137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142956 + ... + 143352.

It is an arithmetic number, because the mean of its divisors is an integer number (2167110).

Almost surely, 2^56832138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56832138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69347520).

56832138 is an abundant number, since it is smaller than the sum of its proper divisors (81862902).

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

56832138 is a wasteful number, since it uses less digits than its factorization.

56832138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 654 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 56832138 is about 7538.7093059754. The cubic root of 56832138 is about 384.4719538887.

The spelling of 56832138 in words is "fifty-six million, eight hundred thirty-two thousand, one hundred thirty-eight".