13685575 has 12 divisors (see below), whose sum is σ = 17708688. Its totient is φ = 10472000.

The previous prime is 13685563. The next prime is 13685579. The reversal of 13685575 is 57558631.

13685575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13685575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13685579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11326 + ... + 12475.

It is an arithmetic number, because the mean of its divisors is an integer number (1475724).

Almost surely, 2^13685575 is an apocalyptic number.

13685575 is a deficient number, since it is larger than the sum of its proper divisors (4023113).

13685575 is a wasteful number, since it uses less digits than its factorization.

13685575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23834 (or 23829 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 13685575 is about 3699.4019786987. The cubic root of 13685575 is about 239.1962406150.

The spelling of 13685575 in words is "thirteen million, six hundred eighty-five thousand, five hundred seventy-five".