22450556 has 12 divisors (see below), whose sum is σ = 39516792. Its totient is φ = 11160048.

The previous prime is 22450499. The next prime is 22450567. The reversal of 22450556 is 65505422.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 15530 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (3293066).

Almost surely, 2^22450556 is an apocalyptic number.

It is an amenable number.

22450556 is a deficient number, since it is larger than the sum of its proper divisors (17066236).

22450556 is a wasteful number, since it uses less digits than its factorization.

22450556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32620 (or 32618 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 22450556 is about 4738.2017686038. The cubic root of 22450556 is about 282.1038632890.

Adding to 22450556 its reverse (65505422), we get a palindrome (87955978).

The spelling of 22450556 in words is "twenty-two million, four hundred fifty thousand, five hundred fifty-six".