22519125137 has 2 divisors, whose sum is σ = 22519125138. Its totient is φ = 22519125136.

The previous prime is 22519125127. The next prime is 22519125151. The reversal of 22519125137 is 73152191522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22378963216 + 140161921 = 149596^2 + 11839^2 .

It is a cyclic number.

It is not a de Polignac number, because 22519125137 - 2³² = 18224157841 is a prime.

It is a super-2 number, since 2×22519125137² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22519125137.

It is not a weakly prime, because it can be changed into another prime (22519125107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11259562568 + 11259562569.

It is an arithmetic number, because the mean of its divisors is an integer number (11259562569).

Almost surely, 2^22519125137 is an apocalyptic number.

It is an amenable number.

22519125137 is a deficient number, since it is larger than the sum of its proper divisors (1).

22519125137 is an equidigital number, since it uses as much as digits as its factorization.

22519125137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The spelling of 22519125137 in words is "twenty-two billion, five hundred nineteen million, one hundred twenty-five thousand, one hundred thirty-seven".