22256522 has 16 divisors (see below), whose sum is σ = 34360200. Its totient is φ = 10805760.

The previous prime is 22256503. The next prime is 22256527. The reversal of 22256522 is 22565222.

It can be written as a sum of positive squares in 4 ways, for example, as 5764801 + 16491721 = 2401^2 + 4061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22256491 and 22256500.

It is not an unprimeable number, because it can be changed into a prime (22256527) by changing a digit.

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, 21554 + ... + 22562.

Almost surely, 2^22256522 is an apocalyptic number.

22256522 is a deficient number, since it is larger than the sum of its proper divisors (12103678).

22256522 is a wasteful number, since it uses less digits than its factorization.

22256522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its digits is 4800, while the sum is 26.

The square root of 22256522 is about 4717.6818459917. The cubic root of 22256522 is about 281.2887951752.

The spelling of 22256522 in words is "twenty-two million, two hundred fifty-six thousand, five hundred twenty-two".