22057579309 has 2 divisors, whose sum is σ = 22057579310. Its totient is φ = 22057579308.

The previous prime is 22057579289. The next prime is 22057579403. The reversal of 22057579309 is 90397575022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16757302500 + 5300276809 = 129450^2 + 72803^2 .

It is a cyclic number.

It is not a de Polignac number, because 22057579309 - 2³¹ = 19910095661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22057571309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11028789654 + 11028789655.

It is an arithmetic number, because the mean of its divisors is an integer number (11028789655).

Almost surely, 2^22057579309 is an apocalyptic number.

It is an amenable number.

22057579309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22057579309 is an equidigital number, since it uses as much as digits as its factorization.

22057579309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The spelling of 22057579309 in words is "twenty-two billion, fifty-seven million, five hundred seventy-nine thousand, three hundred nine".