13649325 has 24 divisors (see below), whose sum is σ = 22760448. Its totient is φ = 7217280.

The previous prime is 13649303. The next prime is 13649341. The reversal of 13649325 is 52394631.

It is not a de Polignac number, because 13649325 - 2⁶ = 13649261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8809 + ... + 10241.

It is an arithmetic number, because the mean of its divisors is an integer number (948352).

Almost surely, 2^13649325 is an apocalyptic number.

13649325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13649325 is a deficient number, since it is larger than the sum of its proper divisors (9111123).

13649325 is a wasteful number, since it uses less digits than its factorization.

13649325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1568 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 13649325 is about 3694.4992894843. The cubic root of 13649325 is about 238.9848615844.

The spelling of 13649325 in words is "thirteen million, six hundred forty-nine thousand, three hundred twenty-five".