22456553 has 20 divisors (see below), whose sum is σ = 26889600. Its totient is φ = 18744264.

The previous prime is 22456549. The next prime is 22456559. The reversal of 22456553 is 35565422.

It is not a de Polignac number, because 22456553 - 2² = 22456549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22456559) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 112748 + ... + 112946.

It is an arithmetic number, because the mean of its divisors is an integer number (1344480).

Almost surely, 2^22456553 is an apocalyptic number.

It is an amenable number.

22456553 is a deficient number, since it is larger than the sum of its proper divisors (4433047).

22456553 is an frugal number, since it uses more digits than its factorization.

22456553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 253 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 22456553 is about 4738.8345613663. The cubic root of 22456553 is about 282.1289796121.

The spelling of 22456553 in words is "twenty-two million, four hundred fifty-six thousand, five hundred fifty-three".