22532553 has 16 divisors (see below), whose sum is σ = 33475200. Its totient is φ = 14979600.

The previous prime is 22532533. The next prime is 22532561. The reversal of 22532553 is 35523522.

It is not a de Polignac number, because 22532553 - 2¹⁶ = 22467017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22532533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10903 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (2092200).

Almost surely, 2^22532553 is an apocalyptic number.

It is an amenable number.

22532553 is a deficient number, since it is larger than the sum of its proper divisors (10942647).

22532553 is a wasteful number, since it uses less digits than its factorization.

22532553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2343 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 22532553 is about 4746.8466375058. The cubic root of 22532553 is about 282.4468921495.

The spelling of 22532553 in words is "twenty-two million, five hundred thirty-two thousand, five hundred fifty-three".