22055564 has 6 divisors (see below), whose sum is σ = 38597244. Its totient is φ = 11027780.

The previous prime is 22055531. The next prime is 22055567. The reversal of 22055564 is 46555022.

It is not an unprimeable number, because it can be changed into a prime (22055567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756942 + ... + 2756949.

It is an arithmetic number, because the mean of its divisors is an integer number (6432874).

Almost surely, 2^22055564 is an apocalyptic number.

It is an amenable number.

22055564 is a deficient number, since it is larger than the sum of its proper divisors (16541680).

22055564 is a wasteful number, since it uses less digits than its factorization.

22055564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513895 (or 5513893 counting only the distinct ones).

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

The square root of 22055564 is about 4696.3351669147. The cubic root of 22055564 is about 280.4396324939.

The spelling of 22055564 in words is "twenty-two million, fifty-five thousand, five hundred sixty-four".