13925825 has 6 divisors (see below), whose sum is σ = 17268054. Its totient is φ = 11140640.

The previous prime is 13925819. The next prime is 13925831. The reversal of 13925825 is 52852931.

It is an interprime number because it is at equal distance from previous prime (13925819) and next prime (13925831).

It can be written as a sum of positive squares in 3 ways, for example, as 94864 + 13830961 = 308^2 + 3719^2 .

It is not a de Polignac number, because 13925825 - 2⁶ = 13925761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278492 + ... + 278541.

It is an arithmetic number, because the mean of its divisors is an integer number (2878009).

Almost surely, 2^13925825 is an apocalyptic number.

It is an amenable number.

13925825 is a deficient number, since it is larger than the sum of its proper divisors (3342229).

13925825 is an equidigital number, since it uses as much as digits as its factorization.

13925825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557043 (or 557038 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 13925825 is about 3731.7321715257. The cubic root of 13925825 is about 240.5878241325.

The spelling of 13925825 in words is "thirteen million, nine hundred twenty-five thousand, eight hundred twenty-five".