13321525 has 12 divisors (see below), whose sum is σ = 18878752. Its totient is φ = 9134640.

The previous prime is 13321513. The next prime is 13321559. The reversal of 13321525 is 52512331.

13321525 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13321525 - 2⁵ = 13321493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13321496 and 13321505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37887 + ... + 38236.

Almost surely, 2^13321525 is an apocalyptic number.

It is an amenable number.

13321525 is a deficient number, since it is larger than the sum of its proper divisors (5557227).

13321525 is an equidigital number, since it uses as much as digits as its factorization.

13321525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76140 (or 76135 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 13321525 is about 3649.8664359124. The cubic root of 13321525 is about 237.0561979878.

Adding to 13321525 its reverse (52512331), we get a palindrome (65833856).

The spelling of 13321525 in words is "thirteen million, three hundred twenty-one thousand, five hundred twenty-five".