13523225 has 12 divisors (see below), whose sum is σ = 16821840. Its totient is φ = 10784400.

The previous prime is 13523219. The next prime is 13523227. The reversal of 13523225 is 52232531.

13523225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13523225 - 2¹⁴ = 13506841 is a prime.

It is a super-2 number, since 2×13523225² = 365755228801250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13523225.

It is not an unprimeable number, because it can be changed into a prime (13523227) 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, 9830 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (1401820).

Almost surely, 2^13523225 is an apocalyptic number.

It is an amenable number.

13523225 is a deficient number, since it is larger than the sum of its proper divisors (3298615).

13523225 is a wasteful number, since it uses less digits than its factorization.

13523225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1715 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 13523225 is about 3677.3937782076. The cubic root of 13523225 is about 238.2466254536.

Adding to 13523225 its reverse (52232531), we get a palindrome (65755756).

The spelling of 13523225 in words is "thirteen million, five hundred twenty-three thousand, two hundred twenty-five".