13366525 has 6 divisors (see below), whose sum is σ = 16574522. Its totient is φ = 10693200.

The previous prime is 13366523. The next prime is 13366537. The reversal of 13366525 is 52566331.

It can be written as a sum of positive squares in 3 ways, for example, as 1792921 + 11573604 = 1339^2 + 3402^2 .

It is not a de Polignac number, because 13366525 - 2¹ = 13366523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13366523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267306 + ... + 267355.

Almost surely, 2^13366525 is an apocalyptic number.

It is an amenable number.

13366525 is a deficient number, since it is larger than the sum of its proper divisors (3207997).

13366525 is an equidigital number, since it uses as much as digits as its factorization.

13366525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534671 (or 534666 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 13366525 is about 3656.0258478299. The cubic root of 13366525 is about 237.3228226121.

It can be divided in two parts, 1336 and 6525, that multiplied together give a triangular number (8717400 = T₄₁₇₅).

The spelling of 13366525 in words is "thirteen million, three hundred sixty-six thousand, five hundred twenty-five".