13525216 has 24 divisors (see below), whose sum is σ = 27007344. Its totient is φ = 6666240.

The previous prime is 13525199. The next prime is 13525231. The reversal of 13525216 is 61252531.

It is a zygodrome in base 2.

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, 705 + ... + 5248.

It is an arithmetic number, because the mean of its divisors is an integer number (1125306).

Almost surely, 2^13525216 is an apocalyptic number.

13525216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13525216 is a deficient number, since it is larger than the sum of its proper divisors (13482128).

13525216 is an equidigital number, since it uses as much as digits as its factorization.

13525216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6034 (or 6026 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 13525216 is about 3677.6644762675. The cubic root of 13525216 is about 238.2583170867.

Adding to 13525216 its reverse (61252531), we get a palindrome (74777747).

The spelling of 13525216 in words is "thirteen million, five hundred twenty-five thousand, two hundred sixteen".