56222290 has 16 divisors (see below), whose sum is σ = 101478168. Its totient is φ = 22427136.

The previous prime is 56222261. The next prime is 56222323. The reversal of 56222290 is 9222265.

56222290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 45549001 + 10673289 = 6749^2 + 3267^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3807 + ... + 11266.

Almost surely, 2^56222290 is an apocalyptic number.

56222290 is a deficient number, since it is larger than the sum of its proper divisors (45255878).

56222290 is a wasteful number, since it uses less digits than its factorization.

56222290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15453.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56222290 is about 7498.1524391012. The cubic root of 56222290 is about 383.0917890200.

The spelling of 56222290 in words is "fifty-six million, two hundred twenty-two thousand, two hundred ninety".