56823930 has 120 divisors (see below), whose sum is σ = 160043796. Its totient is φ = 14463360.

The previous prime is 56823883. The next prime is 56823937. The reversal of 56823930 is 3932865.

56823930 is a `hidden beast` number, since 568 + 2 + 3 + 93 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56746089 + 77841 = 7533^2 + 279^2 .

It is not an unprimeable number, because it can be changed into a prime (56823937) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 778374 + ... + 778446.

Almost surely, 2^56823930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56823930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80021898).

56823930 is an abundant number, since it is smaller than the sum of its proper divisors (103219866).

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

56823930 is a wasteful number, since it uses less digits than its factorization.

56823930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 56823930 is about 7538.1648960473. The cubic root of 56823930 is about 384.4534438353.

The spelling of 56823930 in words is "fifty-six million, eight hundred twenty-three thousand, nine hundred thirty".