13525235 has 4 divisors (see below), whose sum is σ = 16230288. Its totient is φ = 10820184.

The previous prime is 13525231. The next prime is 13525243. The reversal of 13525235 is 53252531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53252531 = 5503 ⋅9677.

It is a cyclic number.

It is not a de Polignac number, because 13525235 - 2² = 13525231 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13525231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352519 + ... + 1352528.

It is an arithmetic number, because the mean of its divisors is an integer number (4057572).

Almost surely, 2^13525235 is an apocalyptic number.

13525235 is a deficient number, since it is larger than the sum of its proper divisors (2705053).

13525235 is an equidigital number, since it uses as much as digits as its factorization.

13525235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705052.

The product of its digits is 4500, while the sum is 26.

The square root of 13525235 is about 3677.6670594278. The cubic root of 13525235 is about 238.2584286537.

Adding to 13525235 its reverse (53252531), we get a palindrome (66777766).

The spelling of 13525235 in words is "thirteen million, five hundred twenty-five thousand, two hundred thirty-five".