13420325 has 12 divisors (see below), whose sum is σ = 17048388. Its totient is φ = 10473600.

The previous prime is 13420321. The next prime is 13420331. The reversal of 13420325 is 52302431.

It is a happy number.

13420325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 474721 + 12945604 = 689^2 + 3598^2 .

It is not a de Polignac number, because 13420325 - 2² = 13420321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13420297 and 13420306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5522 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (1420699).

Almost surely, 2^13420325 is an apocalyptic number.

It is an amenable number.

13420325 is a deficient number, since it is larger than the sum of its proper divisors (3628063).

13420325 is a wasteful number, since it uses less digits than its factorization.

13420325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144 (or 13139 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13420325 is about 3663.3761750604. The cubic root of 13420325 is about 237.6408029344.

Adding to 13420325 its reverse (52302431), we get a palindrome (65722756).

The spelling of 13420325 in words is "thirteen million, four hundred twenty thousand, three hundred twenty-five".