13225166525 has 72 divisors (see below), whose sum is σ = 17792146944. Its totient is φ = 9740102400.

The previous prime is 13225166519. The next prime is 13225166557. The reversal of 13225166525 is 52566152231.

It is a de Polignac number, because none of the positive numbers 2^k-13225166525 is a prime.

It is a super-2 number, since 2×13225166525² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67132727 + ... + 67132923.

It is an arithmetic number, because the mean of its divisors is an integer number (247113152).

Almost surely, 2^13225166525 is an apocalyptic number.

It is an amenable number.

13225166525 is a deficient number, since it is larger than the sum of its proper divisors (4566980419).

13225166525 is a wasteful number, since it uses less digits than its factorization.

13225166525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 365 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The spelling of 13225166525 in words is "thirteen billion, two hundred twenty-five million, one hundred sixty-six thousand, five hundred twenty-five".