56183990 has 16 divisors (see below), whose sum is σ = 101493648. Its totient is φ = 22393056.

The previous prime is 56183971. The next prime is 56184001. The reversal of 56183990 is 9938165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7097 + ... + 12756.

It is an arithmetic number, because the mean of its divisors is an integer number (6343353).

Almost surely, 2^56183990 is an apocalyptic number.

56183990 is a deficient number, since it is larger than the sum of its proper divisors (45309658).

56183990 is a wasteful number, since it uses less digits than its factorization.

56183990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20143.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 56183990 is about 7495.5980415174. The cubic root of 56183990 is about 383.0047787581.

The spelling of 56183990 in words is "fifty-six million, one hundred eighty-three thousand, nine hundred ninety".