22512506513425 has 48 divisors (see below), whose sum is σ = 29663748331632. Its totient is φ = 16889809305600.

The previous prime is 22512506513401. The next prime is 22512506513449. The reversal of 22512506513425 is 52431560521522.

It is an interprime number because it is at equal distance from previous prime (22512506513401) and next prime (22512506513449).

It can be written as a sum of positive squares in 24 ways, for example, as 9384689141136 + 13127817372289 = 3063444^2 + 3623233^2 .

It is not a de Polignac number, because 22512506513425 - 2¹¹ = 22512506511377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158699329 + ... + 158841121.

It is an arithmetic number, because the mean of its divisors is an integer number (617994756909).

Almost surely, 2^{22512506513425} is an apocalyptic number.

22512506513425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22512506513425 is a deficient number, since it is larger than the sum of its proper divisors (7151241818207).

22512506513425 is a wasteful number, since it uses less digits than its factorization.

22512506513425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143158 (or 143153 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 22512506513425 in words is "twenty-two trillion, five hundred twelve billion, five hundred six million, five hundred thirteen thousand, four hundred twenty-five".