13553325 has 72 divisors (see below), whose sum is σ = 26539968. Its totient is φ = 6842880.

The previous prime is 13553311. The next prime is 13553341. The reversal of 13553325 is 52335531.

It is not a de Polignac number, because 13553325 - 2⁹ = 13552813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 139677 + ... + 139773.

Almost surely, 2^13553325 is an apocalyptic number.

13553325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13553325 is a deficient number, since it is larger than the sum of its proper divisors (12986643).

13553325 is an equidigital number, since it uses as much as digits as its factorization.

13553325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 128 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 13553325 is about 3681.4840757499. The cubic root of 13553325 is about 238.4232576160.

Adding to 13553325 its reverse (52335531), we get a palindrome (65888856).

The spelling of 13553325 in words is "thirteen million, five hundred fifty-three thousand, three hundred twenty-five".