22971325 has 18 divisors (see below), whose sum is σ = 30849774. Its totient is φ = 16960320.

The previous prime is 22971307. The next prime is 22971343. The reversal of 22971325 is 52317922.

It is an interprime number because it is at equal distance from previous prime (22971307) and next prime (22971343).

It can be written as a sum of positive squares in 9 ways, for example, as 13935289 + 9036036 = 3733^2 + 3006^2 .

It is not a de Polignac number, because 22971325 - 2⁵ = 22971293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1507 + ... + 6943.

Almost surely, 2^22971325 is an apocalyptic number.

22971325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22971325 is a deficient number, since it is larger than the sum of its proper divisors (7878449).

22971325 is a wasteful number, since it uses less digits than its factorization.

22971325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5455 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 22971325 is about 4792.8410155147. The cubic root of 22971325 is about 284.2684634942.

The spelling of 22971325 in words is "twenty-two million, nine hundred seventy-one thousand, three hundred twenty-five".