22935509 has 2 divisors, whose sum is σ = 22935510. Its totient is φ = 22935508.

The previous prime is 22935487. The next prime is 22935511. The reversal of 22935509 is 90553922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16834609 + 6100900 = 4103^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 22935509 - 2²⁴ = 6158293 is a prime.

Together with 22935511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22935559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11467754 + 11467755.

It is an arithmetic number, because the mean of its divisors is an integer number (11467755).

Almost surely, 2^22935509 is an apocalyptic number.

It is an amenable number.

22935509 is a deficient number, since it is larger than the sum of its proper divisors (1).

22935509 is an equidigital number, since it uses as much as digits as its factorization.

22935509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 22935509 is about 4789.1031519482. The cubic root of 22935509 is about 284.1206465189.

The spelling of 22935509 in words is "twenty-two million, nine hundred thirty-five thousand, five hundred nine".