22132556 has 12 divisors (see below), whose sum is σ = 38929968. Its totient is φ = 11009712.

The previous prime is 22132529. The next prime is 22132567. The reversal of 22132556 is 65523122.

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, 13256 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (3244164).

Almost surely, 2^22132556 is an apocalyptic number.

It is an amenable number.

22132556 is a deficient number, since it is larger than the sum of its proper divisors (16797412).

22132556 is a wasteful number, since it uses less digits than its factorization.

22132556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28288 (or 28286 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 22132556 is about 4704.5250557309. The cubic root of 22132556 is about 280.7655749282.

Adding to 22132556 its reverse (65523122), we get a palindrome (87655678).

The spelling of 22132556 in words is "twenty-two million, one hundred thirty-two thousand, five hundred fifty-six".