56112290 has 32 divisors (see below), whose sum is σ = 109102896. Its totient is φ = 20655360.

The previous prime is 56112289. The next prime is 56112293. The reversal of 56112290 is 9221165.

It can be written as a sum of positive squares in 8 ways, for example, as 14600041 + 41512249 = 3821^2 + 6443^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (56112293) 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 15 ways as a sum of consecutive naturals, for example, 84560 + ... + 85220.

Almost surely, 2^56112290 is an apocalyptic number.

56112290 is a deficient number, since it is larger than the sum of its proper divisors (52990606).

56112290 is a wasteful number, since it uses less digits than its factorization.

56112290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 56112290 is about 7490.8137074686. The cubic root of 56112290 is about 382.8417837324.

The spelling of 56112290 in words is "fifty-six million, one hundred twelve thousand, two hundred ninety".