23255009 has 2 divisors, whose sum is σ = 23255010. Its totient is φ = 23255008.

The previous prime is 23255003. The next prime is 23255017. The reversal of 23255009 is 90055232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22771984 + 483025 = 4772^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 23255009 - 2⁸ = 23254753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23255003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11627504 + 11627505.

It is an arithmetic number, because the mean of its divisors is an integer number (11627505).

Almost surely, 2^23255009 is an apocalyptic number.

It is an amenable number.

23255009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23255009 is an equidigital number, since it uses as much as digits as its factorization.

23255009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 23255009 is about 4822.3447616279. The cubic root of 23255009 is about 285.4338687651.

The spelling of 23255009 in words is "twenty-three million, two hundred fifty-five thousand, nine".