13003525 has 12 divisors (see below), whose sum is σ = 16231972. Its totient is φ = 10333440.

The previous prime is 13003517. The next prime is 13003531. The reversal of 13003525 is 52530031.

It can be written as a sum of positive squares in 6 ways, for example, as 289 + 13003236 = 17^2 + 3606^2 .

It is not a de Polignac number, because 13003525 - 2³ = 13003517 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2269 + ... + 5581.

Almost surely, 2^13003525 is an apocalyptic number.

It is an amenable number.

13003525 is a deficient number, since it is larger than the sum of its proper divisors (3228447).

13003525 is a wasteful number, since it uses less digits than its factorization.

13003525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 13003525 is about 3606.0400718794. The cubic root of 13003525 is about 235.1547192996.

Adding to 13003525 its reverse (52530031), we get a palindrome (65533556).

The spelling of 13003525 in words is "thirteen million, three thousand, five hundred twenty-five".