22912925 has 24 divisors (see below), whose sum is σ = 32652672. Its totient is φ = 15624000.

The previous prime is 22912921. The next prime is 22912931. The reversal of 22912925 is 52921922.

It is not a de Polignac number, because 22912925 - 2² = 22912921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22912891 and 22912900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22912921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54215 + ... + 54635.

It is an arithmetic number, because the mean of its divisors is an integer number (1360528).

Almost surely, 2^22912925 is an apocalyptic number.

22912925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22912925 is a deficient number, since it is larger than the sum of its proper divisors (9739747).

22912925 is a wasteful number, since it uses less digits than its factorization.

22912925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 744 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 22912925 is about 4786.7447184908. The cubic root of 22912925 is about 284.0273604864.

The spelling of 22912925 in words is "twenty-two million, nine hundred twelve thousand, nine hundred twenty-five".