22917925 has 12 divisors (see below), whose sum is σ = 29080480. Its totient is φ = 17907120.

The previous prime is 22917919. The next prime is 22917929. The reversal of 22917925 is 52971922.

It is not a de Polignac number, because 22917925 - 2¹⁷ = 22786853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22917929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9585 + ... + 11734.

Almost surely, 2^22917925 is an apocalyptic number.

22917925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22917925 is a deficient number, since it is larger than the sum of its proper divisors (6162555).

22917925 is a wasteful number, since it uses less digits than its factorization.

22917925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21372 (or 21367 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 22917925 is about 4787.2669656078. The cubic root of 22917925 is about 284.0480188923.

The spelling of 22917925 in words is "twenty-two million, nine hundred seventeen thousand, nine hundred twenty-five".