13085225 has 12 divisors (see below), whose sum is σ = 16410780. Its totient is φ = 10348800.

The previous prime is 13085209. The next prime is 13085227. The reversal of 13085225 is 52258031.

13085225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 204304 + 12880921 = 452^2 + 3589^2 .

It is not a de Polignac number, because 13085225 - 2⁴ = 13085209 is a prime.

It is a super-2 number, since 2×13085225² = 342446226601250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13085194 and 13085203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (1367565).

Almost surely, 2^13085225 is an apocalyptic number.

It is an amenable number.

13085225 is a deficient number, since it is larger than the sum of its proper divisors (3325555).

13085225 is an equidigital number, since it uses as much as digits as its factorization.

13085225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 13085225 is about 3617.3505497809. The cubic root of 13085225 is about 235.6461769201.

The spelling of 13085225 in words is "thirteen million, eighty-five thousand, two hundred twenty-five".