13852565 has 4 divisors (see below), whose sum is σ = 16623084. Its totient is φ = 11082048.

The previous prime is 13852543. The next prime is 13852591. The reversal of 13852565 is 56525831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4695889 + 9156676 = 2167^2 + 3026^2 .

It is a cyclic number.

It is not a de Polignac number, because 13852565 - 2⁸ = 13852309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385252 + ... + 1385261.

It is an arithmetic number, because the mean of its divisors is an integer number (4155771).

Almost surely, 2^13852565 is an apocalyptic number.

It is an amenable number.

13852565 is a deficient number, since it is larger than the sum of its proper divisors (2770519).

13852565 is an equidigital number, since it uses as much as digits as its factorization.

13852565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770518.

The product of its digits is 36000, while the sum is 35.

The square root of 13852565 is about 3721.9034108907. The cubic root of 13852565 is about 240.1651929839.

The spelling of 13852565 in words is "thirteen million, eight hundred fifty-two thousand, five hundred sixty-five".