22519125136 has 30 divisors (see below), whose sum is σ = 43874212146. Its totient is φ = 11197094400.

The previous prime is 22519125127. The next prime is 22519125137. The reversal of 22519125136 is 63152191522.

It can be written as a sum of positive squares in 3 ways, for example, as 5410485136 + 17108640000 = 73556^2 + 130800^2 .

It is a super-2 number, since 2×22519125136² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22519125095 and 22519125104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22519125137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502696 + ... + 545656.

Almost surely, 2^22519125136 is an apocalyptic number.

It is an amenable number.

22519125136 is a deficient number, since it is larger than the sum of its proper divisors (21355087010).

22519125136 is an equidigital number, since it uses as much as digits as its factorization.

22519125136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43331 (or 43144 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The spelling of 22519125136 in words is "twenty-two billion, five hundred nineteen million, one hundred twenty-five thousand, one hundred thirty-six".