13253565 has 16 divisors (see below), whose sum is σ = 22837248. Its totient is φ = 6524736.

The previous prime is 13253561. The next prime is 13253567. The reversal of 13253565 is 56535231.

13253565 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 13253565 - 2² = 13253561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253561) 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, 33789 + ... + 34178.

It is an arithmetic number, because the mean of its divisors is an integer number (1427328).

Almost surely, 2^13253565 is an apocalyptic number.

13253565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13253565 is a deficient number, since it is larger than the sum of its proper divisors (9583683).

13253565 is a wasteful number, since it uses less digits than its factorization.

13253565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67988.

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

The square root of 13253565 is about 3640.5446021166. The cubic root of 13253565 is about 236.6523950485.

Adding to 13253565 its reverse (56535231), we get a palindrome (69788796).

The spelling of 13253565 in words is "thirteen million, two hundred fifty-three thousand, five hundred sixty-five".