13408625 has 8 divisors (see below), whose sum is σ = 16734120. Its totient is φ = 10726800.

The previous prime is 13408621. The next prime is 13408627. The reversal of 13408625 is 52680431.

13408625 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 4 ways, for example, as 3996001 + 9412624 = 1999^2 + 3068^2 .

It is not a de Polignac number, because 13408625 - 2² = 13408621 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13408621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53510 + ... + 53759.

It is an arithmetic number, because the mean of its divisors is an integer number (2091765).

Almost surely, 2^13408625 is an apocalyptic number.

It is an amenable number.

13408625 is a deficient number, since it is larger than the sum of its proper divisors (3325495).

13408625 is an equidigital number, since it uses as much as digits as its factorization.

13408625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107284 (or 107274 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 13408625 is about 3661.7789392589. The cubic root of 13408625 is about 237.5717234901.

The spelling of 13408625 in words is "thirteen million, four hundred eight thousand, six hundred twenty-five".