13529225 has 12 divisors (see below), whose sum is σ = 17355660. Its totient is φ = 10449600.

The previous prime is 13529213. The next prime is 13529233. The reversal of 13529225 is 52292531.

It can be written as a sum of positive squares in 6 ways, for example, as 1784896 + 11744329 = 1336^2 + 3427^2 .

It is not a de Polignac number, because 13529225 - 2⁴ = 13529209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8606 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (1446305).

Almost surely, 2^13529225 is an apocalyptic number.

It is an amenable number.

13529225 is a deficient number, since it is larger than the sum of its proper divisors (3826435).

13529225 is a wasteful number, since it uses less digits than its factorization.

13529225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18700 (or 18695 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 13529225 is about 3678.2094828870. The cubic root of 13529225 is about 238.2818554226.

The spelling of 13529225 in words is "thirteen million, five hundred twenty-nine thousand, two hundred twenty-five".