12617250518525 has 12 divisors (see below), whose sum is σ = 16026985538004. Its totient is φ = 9847610160000.

The previous prime is 12617250518513. The next prime is 12617250518531. The reversal of 12617250518525 is 52581505271621.

It can be written as a sum of positive squares in 6 ways, for example, as 275161095364 + 12342089423161 = 524558^2 + 3513131^2 .

It is not a de Polignac number, because 12617250518525 - 2¹⁴ = 12617250502141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6154755326 + ... + 6154757375.

It is an arithmetic number, because the mean of its divisors is an integer number (1335582128167).

Almost surely, 2^{12617250518525} is an apocalyptic number.

It is an amenable number.

12617250518525 is a deficient number, since it is larger than the sum of its proper divisors (3409735019479).

12617250518525 is a wasteful number, since it uses less digits than its factorization.

12617250518525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12309512752 (or 12309512747 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 50.

The spelling of 12617250518525 in words is "twelve trillion, six hundred seventeen billion, two hundred fifty million, five hundred eighteen thousand, five hundred twenty-five".