13252521 has 8 divisors (see below), whose sum is σ = 17969760. Its totient is φ = 8685152.

The previous prime is 13252489. The next prime is 13252529. The reversal of 13252521 is 12525231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13252521 - 2⁵ = 13252489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13252529) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37260 + ... + 37613.

It is an arithmetic number, because the mean of its divisors is an integer number (2246220).

Almost surely, 2^13252521 is an apocalyptic number.

It is an amenable number.

13252521 is a deficient number, since it is larger than the sum of its proper divisors (4717239).

13252521 is an equidigital number, since it uses as much as digits as its factorization.

13252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74935.

The product of its digits is 600, while the sum is 21.

The square root of 13252521 is about 3640.4012141521. The cubic root of 13252521 is about 236.6461810830.

Adding to 13252521 its reverse (12525231), we get a palindrome (25777752).

The spelling of 13252521 in words is "thirteen million, two hundred fifty-two thousand, five hundred twenty-one".