13611425 has 12 divisors (see below), whose sum is σ = 16924140. Its totient is φ = 10859520.

The previous prime is 13611413. The next prime is 13611427. The reversal of 13611425 is 52411631.

It can be written as a sum of positive squares in 6 ways, for example, as 2704 + 13608721 = 52^2 + 3689^2 .

It is not a de Polignac number, because 13611425 - 2¹⁴ = 13595041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13611425.

It is not an unprimeable number, because it can be changed into a prime (13611427) 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 11 ways as a sum of consecutive naturals, for example, 16421 + ... + 17229.

It is an arithmetic number, because the mean of its divisors is an integer number (1410345).

Almost surely, 2^13611425 is an apocalyptic number.

It is an amenable number.

13611425 is a deficient number, since it is larger than the sum of its proper divisors (3312715).

13611425 is an equidigital number, since it uses as much as digits as its factorization.

13611425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1487 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 13611425 is about 3689.3664767816. The cubic root of 13611425 is about 238.7634605863.

The spelling of 13611425 in words is "thirteen million, six hundred eleven thousand, four hundred twenty-five".