13775012525 has 12 divisors (see below), whose sum is σ = 17144522100. Its totient is φ = 10979038080.

The previous prime is 13775012519. The next prime is 13775012527. The reversal of 13775012525 is 52521057731.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4680338569 + 9094673956 = 68413^2 + 95366^2 .

It is not a de Polignac number, because 13775012525 - 2⁴ = 13775012509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13775012527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1017440 + ... + 1030889.

It is an arithmetic number, because the mean of its divisors is an integer number (1428710175).

Almost surely, 2^13775012525 is an apocalyptic number.

It is an amenable number.

13775012525 is a deficient number, since it is larger than the sum of its proper divisors (3369509575).

13775012525 is a wasteful number, since it uses less digits than its factorization.

13775012525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048608 (or 2048603 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 13775012525 in words is "thirteen billion, seven hundred seventy-five million, twelve thousand, five hundred twenty-five".