22056556 has 6 divisors (see below), whose sum is σ = 38598980. Its totient is φ = 11028276.

The previous prime is 22056553. The next prime is 22056571. The reversal of 22056556 is 65565022.

It is a super-2 number, since 2×22056556² = 972983325162272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22056553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757066 + ... + 2757073.

Almost surely, 2^22056556 is an apocalyptic number.

It is an amenable number.

22056556 is a deficient number, since it is larger than the sum of its proper divisors (16542424).

22056556 is a wasteful number, since it uses less digits than its factorization.

22056556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514143 (or 5514141 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 22056556 is about 4696.4407799950. The cubic root of 22056556 is about 280.4438369046.

The spelling of 22056556 in words is "twenty-two million, fifty-six thousand, five hundred fifty-six".