13403825 has 12 divisors (see below), whose sum is σ = 17344128. Its totient is φ = 10256400.

The previous prime is 13403813. The next prime is 13403827. The reversal of 13403825 is 52830431.

It is a de Polignac number, because none of the positive numbers 2^k-13403825 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13403794 and 13403803.

It is not an unprimeable number, because it can be changed into a prime (13403827) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11081 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (1445344).

Almost surely, 2^13403825 is an apocalyptic number.

It is an amenable number.

13403825 is a deficient number, since it is larger than the sum of its proper divisors (3940303).

13403825 is a wasteful number, since it uses less digits than its factorization.

13403825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344 (or 23339 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 13403825 is about 3661.1234614528. The cubic root of 13403825 is about 237.5433715805.

The spelling of 13403825 in words is "thirteen million, four hundred three thousand, eight hundred twenty-five".