13525785 has 80 divisors (see below), whose sum is σ = 29922816. Its totient is φ = 5692032.

The previous prime is 13525751. The next prime is 13525789. The reversal of 13525785 is 58752531.

13525785 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13525785 - 2⁸ = 13525529 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (13525789) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36672 + ... + 37038.

Almost surely, 2^13525785 is an apocalyptic number.

13525785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13525785 is an abundant number, since it is smaller than the sum of its proper divisors (16397031).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13525785 is a wasteful number, since it uses less digits than its factorization.

13525785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 395 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 13525785 is about 3677.7418343326. The cubic root of 13525785 is about 238.2616581813.

The spelling of 13525785 in words is "thirteen million, five hundred twenty-five thousand, seven hundred eighty-five".