13525479 has 12 divisors (see below), whose sum is σ = 21313032. Its totient is φ = 8197200.

The previous prime is 13525471. The next prime is 13525481. The reversal of 13525479 is 97452531.

It is not a de Polignac number, because 13525479 - 2³ = 13525471 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525471) 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, 68212 + ... + 68409.

It is an arithmetic number, because the mean of its divisors is an integer number (1776086).

Almost surely, 2^13525479 is an apocalyptic number.

13525479 is a deficient number, since it is larger than the sum of its proper divisors (7787553).

13525479 is a wasteful number, since it uses less digits than its factorization.

13525479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136638 (or 136635 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 13525479 is about 3677.7002324823. The cubic root of 13525479 is about 238.2598614004.

The spelling of 13525479 in words is "thirteen million, five hundred twenty-five thousand, four hundred seventy-nine".