13415825 has 6 divisors (see below), whose sum is σ = 16635654. Its totient is φ = 10732640.

The previous prime is 13415819. The next prime is 13415849. The reversal of 13415825 is 52851431.

13415825 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 398161 + 13017664 = 631^2 + 3608^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13415825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268292 + ... + 268341.

It is an arithmetic number, because the mean of its divisors is an integer number (2772609).

Almost surely, 2^13415825 is an apocalyptic number.

It is an amenable number.

13415825 is a deficient number, since it is larger than the sum of its proper divisors (3219829).

13415825 is an equidigital number, since it uses as much as digits as its factorization.

13415825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536643 (or 536638 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 13415825 is about 3662.7619360259. The cubic root of 13415825 is about 237.6142386706.

The spelling of 13415825 in words is "thirteen million, four hundred fifteen thousand, eight hundred twenty-five".