13225517 has 2 divisors, whose sum is σ = 13225518. Its totient is φ = 13225516.

The previous prime is 13225453. The next prime is 13225549. The reversal of 13225517 is 71552231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12823561 + 401956 = 3581^2 + 634^2 .

It is an emirp because it is prime and its reverse (71552231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13225517 - 2⁶ = 13225453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13225117) 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 as a sum of consecutive naturals, namely, 6612758 + 6612759.

It is an arithmetic number, because the mean of its divisors is an integer number (6612759).

Almost surely, 2^13225517 is an apocalyptic number.

It is an amenable number.

13225517 is a deficient number, since it is larger than the sum of its proper divisors (1).

13225517 is an equidigital number, since it uses as much as digits as its factorization.

13225517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 26.

The square root of 13225517 is about 3636.6903910011. The cubic root of 13225517 is about 236.4853377522.

Adding to 13225517 its reverse (71552231), we get a palindrome (84777748).

The spelling of 13225517 in words is "thirteen million, two hundred twenty-five thousand, five hundred seventeen".