22563453 has 16 divisors (see below), whose sum is σ = 33062400. Its totient is φ = 13573680.

The previous prime is 22563449. The next prime is 22563481. The reversal of 22563453 is 35436522.

It is not a de Polignac number, because 22563453 - 2² = 22563449 is a prime.

It is a super-2 number, since 2×22563453² = 1018218822566418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22563453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563493) 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 15 ways as a sum of consecutive naturals, for example, 2128 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (2066400).

Almost surely, 2^22563453 is an apocalyptic number.

It is an amenable number.

22563453 is a deficient number, since it is larger than the sum of its proper divisors (10498947).

22563453 is a wasteful number, since it uses less digits than its factorization.

22563453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its digits is 21600, while the sum is 30.

The square root of 22563453 is about 4750.1003147302. The cubic root of 22563453 is about 282.5759442883.

Adding to 22563453 its reverse (35436522), we get a palindrome (57999975).

The spelling of 22563453 in words is "twenty-two million, five hundred sixty-three thousand, four hundred fifty-three".