22925909 has 2 divisors, whose sum is σ = 22925910. Its totient is φ = 22925908.

The previous prime is 22925899. The next prime is 22925933. The reversal of 22925909 is 90952922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20295025 + 2630884 = 4505^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22925909 - 2⁴ = 22925893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22925939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11462954 + 11462955.

It is an arithmetic number, because the mean of its divisors is an integer number (11462955).

Almost surely, 2^22925909 is an apocalyptic number.

It is an amenable number.

22925909 is a deficient number, since it is larger than the sum of its proper divisors (1).

22925909 is an equidigital number, since it uses as much as digits as its factorization.

22925909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 22925909 is about 4788.1007717048. The cubic root of 22925909 is about 284.0810000062.

The spelling of 22925909 in words is "twenty-two million, nine hundred twenty-five thousand, nine hundred nine".