13525025 has 6 divisors (see below), whose sum is σ = 16771062. Its totient is φ = 10820000.

The previous prime is 13525009. The next prime is 13525027. The reversal of 13525025 is 52052531.

It can be written as a sum of positive squares in 3 ways, for example, as 2819041 + 10705984 = 1679^2 + 3272^2 .

It is not a de Polignac number, because 13525025 - 2⁴ = 13525009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270476 + ... + 270525.

It is an arithmetic number, because the mean of its divisors is an integer number (2795177).

Almost surely, 2^13525025 is an apocalyptic number.

It is an amenable number.

13525025 is a deficient number, since it is larger than the sum of its proper divisors (3246037).

13525025 is an equidigital number, since it uses as much as digits as its factorization.

13525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541011 (or 541006 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 13525025 is about 3677.6385086085. The cubic root of 13525025 is about 238.2571955383.

Adding to 13525025 its reverse (52052531), we get a palindrome (65577556).

The spelling of 13525025 in words is "thirteen million, five hundred twenty-five thousand, twenty-five".