22709255509 has 2 divisors, whose sum is σ = 22709255510. Its totient is φ = 22709255508.

The previous prime is 22709255501. The next prime is 22709255557. The reversal of 22709255509 is 90555290722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22708983025 + 272484 = 150695^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 22709255509 - 2³ = 22709255501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22709255501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11354627754 + 11354627755.

It is an arithmetic number, because the mean of its divisors is an integer number (11354627755).

Almost surely, 2^22709255509 is an apocalyptic number.

It is an amenable number.

22709255509 is a deficient number, since it is larger than the sum of its proper divisors (1).

22709255509 is an equidigital number, since it uses as much as digits as its factorization.

22709255509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 46.

The spelling of 22709255509 in words is "twenty-two billion, seven hundred nine million, two hundred fifty-five thousand, five hundred nine".