22525512 has 16 divisors (see below), whose sum is σ = 56313840. Its totient is φ = 7508496.

The previous prime is 22525483. The next prime is 22525519. The reversal of 22525512 is 21552522.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 938563 = 22525512 / (2 + 2 + 5 + 2 + 5 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (22525519) 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 3 ways as a sum of consecutive naturals, for example, 469258 + ... + 469305.

It is an arithmetic number, because the mean of its divisors is an integer number (3519615).

Almost surely, 2^22525512 is an apocalyptic number.

It is an amenable number.

22525512 is an abundant number, since it is smaller than the sum of its proper divisors (33788328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22525512 is a wasteful number, since it uses less digits than its factorization.

22525512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938572 (or 938568 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 22525512 is about 4746.1049293078. The cubic root of 22525512 is about 282.4174693000.

The spelling of 22525512 in words is "twenty-two million, five hundred twenty-five thousand, five hundred twelve".