13085425 has 6 divisors (see below), whose sum is σ = 16225958. Its totient is φ = 10468320.

The previous prime is 13085407. The next prime is 13085431. The reversal of 13085425 is 52458031.

It can be written as a sum of positive squares in 3 ways, for example, as 2405601 + 10679824 = 1551^2 + 3268^2 .

It is not a de Polignac number, because 13085425 - 2⁷ = 13085297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13085393 and 13085402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261684 + ... + 261733.

Almost surely, 2^13085425 is an apocalyptic number.

It is an amenable number.

13085425 is a deficient number, since it is larger than the sum of its proper divisors (3140533).

13085425 is an equidigital number, since it uses as much as digits as its factorization.

13085425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523427 (or 523422 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 13085425 is about 3617.3781942175. The cubic root of 13085425 is about 235.6473774853.

The spelling of 13085425 in words is "thirteen million, eighty-five thousand, four hundred twenty-five".