13648425 has 24 divisors (see below), whose sum is σ = 25790016. Its totient is φ = 6239040.

The previous prime is 13648391. The next prime is 13648429. The reversal of 13648425 is 52484631.

It is not a de Polignac number, because 13648425 - 2¹⁰ = 13647401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13648429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12474 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (1074584).

Almost surely, 2^13648425 is an apocalyptic number.

13648425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13648425 is a deficient number, since it is larger than the sum of its proper divisors (12141591).

13648425 is a wasteful number, since it uses less digits than its factorization.

13648425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017 (or 26012 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 13648425 is about 3694.3774847733. The cubic root of 13648425 is about 238.9796087947.

The spelling of 13648425 in words is "thirteen million, six hundred forty-eight thousand, four hundred twenty-five".