22955609 has 2 divisors, whose sum is σ = 22955610. Its totient is φ = 22955608.

The previous prime is 22955573. The next prime is 22955657. The reversal of 22955609 is 90655922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14707225 + 8248384 = 3835^2 + 2872^2 .

It is a cyclic number.

It is not a de Polignac number, because 22955609 - 2⁸ = 22955353 is a prime.

It is not a weakly prime, because it can be changed into another prime (22955659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11477804 + 11477805.

It is an arithmetic number, because the mean of its divisors is an integer number (11477805).

Almost surely, 2^22955609 is an apocalyptic number.

It is an amenable number.

22955609 is a deficient number, since it is larger than the sum of its proper divisors (1).

22955609 is an equidigital number, since it uses as much as digits as its factorization.

22955609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 22955609 is about 4791.2012063782. The cubic root of 22955609 is about 284.2036205882.

The spelling of 22955609 in words is "twenty-two million, nine hundred fifty-five thousand, six hundred nine".