13875425 has 12 divisors (see below), whose sum is σ = 17626476. Its totient is φ = 10828800.

The previous prime is 13875419. The next prime is 13875431. The reversal of 13875425 is 52457831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13875419) and next prime (13875431).

It can be written as a sum of positive squares in 6 ways, for example, as 163216 + 13712209 = 404^2 + 3703^2 .

It is not a de Polignac number, because 13875425 - 2⁶ = 13875361 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

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 11 ways as a sum of consecutive naturals, for example, 5744 + ... + 7793.

It is an arithmetic number, because the mean of its divisors is an integer number (1468873).

Almost surely, 2^13875425 is an apocalyptic number.

It is an amenable number.

13875425 is a deficient number, since it is larger than the sum of its proper divisors (3751051).

13875425 is a wasteful number, since it uses less digits than its factorization.

13875425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588 (or 13583 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 13875425 is about 3724.9731542657. The cubic root of 13875425 is about 240.2972301204.

The spelling of 13875425 in words is "thirteen million, eight hundred seventy-five thousand, four hundred twenty-five".