13329425 has 6 divisors (see below), whose sum is σ = 16528518. Its totient is φ = 10663520.

The previous prime is 13329413. The next prime is 13329451. The reversal of 13329425 is 52492331.

It can be written as a sum of positive squares in 3 ways, for example, as 1274641 + 12054784 = 1129^2 + 3472^2 .

It is not a de Polignac number, because 13329425 - 2⁴ = 13329409 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 266564 + ... + 266613.

It is an arithmetic number, because the mean of its divisors is an integer number (2754753).

Almost surely, 2^13329425 is an apocalyptic number.

It is an amenable number.

13329425 is a deficient number, since it is larger than the sum of its proper divisors (3199093).

13329425 is an equidigital number, since it uses as much as digits as its factorization.

13329425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533187 (or 533182 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 13329425 is about 3650.9485068952. The cubic root of 13329425 is about 237.1030488274.

The spelling of 13329425 in words is "thirteen million, three hundred twenty-nine thousand, four hundred twenty-five".