13565253 has 16 divisors (see below), whose sum is σ = 19933760. Its totient is φ = 8152704.

The previous prime is 13565213. The next prime is 13565263. The reversal of 13565253 is 35256531.

13565253 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13565253 - 2¹² = 13561157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13565253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13565213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (1245860).

Almost surely, 2^13565253 is an apocalyptic number.

13565253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13565253 is a deficient number, since it is larger than the sum of its proper divisors (6368507).

13565253 is a wasteful number, since it uses less digits than its factorization.

13565253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148.

The product of its digits is 13500, while the sum is 30.

The square root of 13565253 is about 3683.1037183332. The cubic root of 13565253 is about 238.4931808940.

The spelling of 13565253 in words is "thirteen million, five hundred sixty-five thousand, two hundred fifty-three".