22056566 has 12 divisors (see below), whose sum is σ = 38486628. Its totient is φ = 9452772.

The previous prime is 22056553. The next prime is 22056571. The reversal of 22056566 is 66565022.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112436 + ... + 112631.

It is an arithmetic number, because the mean of its divisors is an integer number (3207219).

Almost surely, 2^22056566 is an apocalyptic number.

22056566 is a deficient number, since it is larger than the sum of its proper divisors (16430062).

22056566 is a wasteful number, since it uses less digits than its factorization.

22056566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225083 (or 225076 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 22056566 is about 4696.4418446309. The cubic root of 22056566 is about 280.4438792871.

It can be divided in two parts, 22056 and 566, that added together give a palindrome (22622).

The spelling of 22056566 in words is "twenty-two million, fifty-six thousand, five hundred sixty-six".