13520885 has 16 divisors (see below), whose sum is σ = 18807552. Its totient is φ = 9139200.

The previous prime is 13520879. The next prime is 13520887. The reversal of 13520885 is 58802531.

It is a happy number.

It is not a de Polignac number, because 13520885 - 2⁴ = 13520869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520887) 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, 236 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (1175472).

Almost surely, 2^13520885 is an apocalyptic number.

It is an amenable number.

13520885 is a deficient number, since it is larger than the sum of its proper divisors (5286667).

13520885 is an equidigital number, since it uses as much as digits as its factorization.

13520885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 13520885 is about 3677.0756043356. The cubic root of 13520885 is about 238.2328829412.

The spelling of 13520885 in words is "thirteen million, five hundred twenty thousand, eight hundred eighty-five".