22525497 has 6 divisors (see below), whose sum is σ = 32536842. Its totient is φ = 15016992.

The previous prime is 22525483. The next prime is 22525519. The reversal of 22525497 is 79452522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 7502121 = 3876^2 + 2739^2 .

It is not a de Polignac number, because 22525497 - 2⁷ = 22525369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22525427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1251408 + ... + 1251425.

It is an arithmetic number, because the mean of its divisors is an integer number (5422807).

Almost surely, 2^22525497 is an apocalyptic number.

It is an amenable number.

22525497 is a deficient number, since it is larger than the sum of its proper divisors (10011345).

22525497 is a wasteful number, since it uses less digits than its factorization.

22525497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502839 (or 2502836 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 22525497 is about 4746.1033490644. The cubic root of 22525497 is about 282.4174066116.

Subtracting 22525497 from its reverse (79452522), we obtain a square (56927025 = 7545²).

The spelling of 22525497 in words is "twenty-two million, five hundred twenty-five thousand, four hundred ninety-seven".