56823858 has 96 divisors (see below), whose sum is σ = 153369216. Its totient is φ = 14805504.

The previous prime is 56823841. The next prime is 56823863. The reversal of 56823858 is 85832865.

It is a happy number.

56823858 is a `hidden beast` number, since 568 + 2 + 3 + 85 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184941 + ... + 185247.

It is an arithmetic number, because the mean of its divisors is an integer number (1597596).

Almost surely, 2^56823858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56823858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76684608).

56823858 is an abundant number, since it is smaller than the sum of its proper divisors (96545358).

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

56823858 is a wasteful number, since it uses less digits than its factorization.

56823858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 445 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 56823858 is about 7538.1601203477. The cubic root of 56823858 is about 384.4532814585.

The spelling of 56823858 in words is "fifty-six million, eight hundred twenty-three thousand, eight hundred fifty-eight".