22525072 has 20 divisors (see below), whose sum is σ = 44708076. Its totient is φ = 10987520.

The previous prime is 22525039. The next prime is 22525091. The reversal of 22525072 is 27052522.

It can be written as a sum of positive squares in 2 ways, for example, as 4682896 + 17842176 = 2164^2 + 4224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16513 + ... + 17824.

Almost surely, 2^22525072 is an apocalyptic number.

It is an amenable number.

22525072 is a deficient number, since it is larger than the sum of its proper divisors (22183004).

22525072 is a wasteful number, since it uses less digits than its factorization.

22525072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34386 (or 34380 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 22525072 is about 4746.0585752812. The cubic root of 22525072 is about 282.4156304296.

Adding to 22525072 its reverse (27052522), we get a palindrome (49577594).

The spelling of 22525072 in words is "twenty-two million, five hundred twenty-five thousand, seventy-two".