13250513 has 4 divisors (see below), whose sum is σ = 13271280. Its totient is φ = 13229748.

The previous prime is 13250509. The next prime is 13250521. The reversal of 13250513 is 31505231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31505231 = 5431 ⋅5801.

It is a cyclic number.

It is not a de Polignac number, because 13250513 - 2² = 13250509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13250533) 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 3 ways as a sum of consecutive naturals, for example, 9395 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (3317820).

Almost surely, 2^13250513 is an apocalyptic number.

It is an amenable number.

13250513 is a deficient number, since it is larger than the sum of its proper divisors (20767).

13250513 is an equidigital number, since it uses as much as digits as its factorization.

13250513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20766.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13250513 is about 3640.1254099275. The cubic root of 13250513 is about 236.6342284003.

Adding to 13250513 its reverse (31505231), we get a palindrome (44755744).

The spelling of 13250513 in words is "thirteen million, two hundred fifty thousand, five hundred thirteen".