22505562 has 12 divisors (see below), whose sum is σ = 48762090. Its totient is φ = 7501848.

The previous prime is 22505551. The next prime is 22505579. The reversal of 22505562 is 26550522.

It can be written as a sum of positive squares in only one way, i.e., 22382361 + 123201 = 4731^2 + 351^2 .

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 5 ways as a sum of consecutive naturals, for example, 625137 + ... + 625172.

Almost surely, 2^22505562 is an apocalyptic number.

22505562 is an abundant number, since it is smaller than the sum of its proper divisors (26256528).

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

22505562 is a wasteful number, since it uses less digits than its factorization.

22505562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250317 (or 1250314 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 22505562 is about 4744.0027403027. The cubic root of 22505562 is about 282.3340691584.

The spelling of 22505562 in words is "twenty-two million, five hundred five thousand, five hundred sixty-two".