22525351309 has 2 divisors, whose sum is σ = 22525351310. Its totient is φ = 22525351308.

The previous prime is 22525351301. The next prime is 22525351367. The reversal of 22525351309 is 90315352522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14795073225 + 7730278084 = 121635^2 + 87922^2 .

It is a cyclic number.

It is not a de Polignac number, because 22525351309 - 2³ = 22525351301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22525351301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262675654 + 11262675655.

It is an arithmetic number, because the mean of its divisors is an integer number (11262675655).

Almost surely, 2^22525351309 is an apocalyptic number.

It is an amenable number.

22525351309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525351309 is an equidigital number, since it uses as much as digits as its factorization.

22525351309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 22525351309 in words is "twenty-two billion, five hundred twenty-five million, three hundred fifty-one thousand, three hundred nine".