56223870 has 32 divisors (see below), whose sum is σ = 136791072. Its totient is φ = 14787072.

The previous prime is 56223857. The next prime is 56223887. The reversal of 56223870 is 7832265.

It is a super-2 number, since 2×56223870² = 6322247115553800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10647 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (4274721).

Almost surely, 2^56223870 is an apocalyptic number.

56223870 is an abundant number, since it is smaller than the sum of its proper divisors (80567202).

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

56223870 is a wasteful number, since it uses less digits than its factorization.

56223870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25756.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 56223870 is about 7498.2577976487. The cubic root of 56223870 is about 383.0953776284.

The spelling of 56223870 in words is "fifty-six million, two hundred twenty-three thousand, eight hundred seventy".