13126525 has 12 divisors (see below), whose sum is σ = 16447732. Its totient is φ = 10391040.

The previous prime is 13126517. The next prime is 13126541. The reversal of 13126525 is 52562131.

It can be written as a sum of positive squares in 6 ways, for example, as 1279161 + 11847364 = 1131^2 + 3442^2 .

It is not a de Polignac number, because 13126525 - 2³ = 13126517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13126525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282 + ... + 5131.

Almost surely, 2^13126525 is an apocalyptic number.

It is an amenable number.

13126525 is a deficient number, since it is larger than the sum of its proper divisors (3321207).

13126525 is an equidigital number, since it uses as much as digits as its factorization.

13126525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520 (or 5515 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 13126525 is about 3623.0546504297. The cubic root of 13126525 is about 235.8938345139.

Adding to 13126525 its reverse (52562131), we get a palindrome (65688656).

The spelling of 13126525 in words is "thirteen million, one hundred twenty-six thousand, five hundred twenty-five".