22525315 has 16 divisors (see below), whose sum is σ = 28447200. Its totient is φ = 17097472.

The previous prime is 22525301. The next prime is 22525331. The reversal of 22525315 is 51352522.

It is a happy number.

It is not a de Polignac number, because 22525315 - 2¹³ = 22517123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22525315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7239 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (1777950).

Almost surely, 2^22525315 is an apocalyptic number.

22525315 is a deficient number, since it is larger than the sum of its proper divisors (5921885).

22525315 is a wasteful number, since it uses less digits than its factorization.

22525315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 3000, while the sum is 25.

The square root of 22525315 is about 4746.0841754019. The cubic root of 22525315 is about 282.4166459905.

Adding to 22525315 its reverse (51352522), we get a palindrome (73877837).

The spelling of 22525315 in words is "twenty-two million, five hundred twenty-five thousand, three hundred fifteen".