13425569 has 2 divisors, whose sum is σ = 13425570. Its totient is φ = 13425568.

The previous prime is 13425547. The next prime is 13425613. The reversal of 13425569 is 96552431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8340544 + 5085025 = 2888^2 + 2255^2 .

It is an emirp because it is prime and its reverse (96552431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13425569 - 2²⁰ = 12376993 is a prime.

It is a super-2 number, since 2×13425569² = 360491805947522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13425539) 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, 6712784 + 6712785.

It is an arithmetic number, because the mean of its divisors is an integer number (6712785).

Almost surely, 2^13425569 is an apocalyptic number.

It is an amenable number.

13425569 is a deficient number, since it is larger than the sum of its proper divisors (1).

13425569 is an equidigital number, since it uses as much as digits as its factorization.

13425569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 13425569 is about 3664.0918383687. The cubic root of 13425569 is about 237.6717516656.

The spelling of 13425569 in words is "thirteen million, four hundred twenty-five thousand, five hundred sixty-nine".