22481725 has 12 divisors (see below), whose sum is σ = 31860064. Its totient is φ = 15415920.

The previous prime is 22481687. The next prime is 22481743. The reversal of 22481725 is 52718422.

It is a happy number.

It is not a de Polignac number, because 22481725 - 2⁹ = 22481213 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 11 ways as a sum of consecutive naturals, for example, 64059 + ... + 64408.

Almost surely, 2^22481725 is an apocalyptic number.

22481725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22481725 is a deficient number, since it is larger than the sum of its proper divisors (9378339).

22481725 is a wasteful number, since it uses less digits than its factorization.

22481725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128484 (or 128479 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 22481725 is about 4741.4897447954. The cubic root of 22481725 is about 282.2343549240.

The spelling of 22481725 in words is "twenty-two million, four hundred eighty-one thousand, seven hundred twenty-five".