25806875 has 20 divisors (see below), whose sum is σ = 32577072. Its totient is φ = 20436000.

The previous prime is 25806863. The next prime is 25806877. The reversal of 25806875 is 57860852.

It is not a de Polignac number, because 25806875 - 2²⁰ = 24758299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25806877) 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 19 ways as a sum of consecutive naturals, for example, 97994 + ... + 98256.

Almost surely, 2^25806875 is an apocalyptic number.

25806875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25806875 is a deficient number, since it is larger than the sum of its proper divisors (6770197).

25806875 is an equidigital number, since it uses as much as digits as its factorization.

25806875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 25806875 is about 5080.0467517534. The cubic root of 25806875 is about 295.5142805524.

The spelling of 25806875 in words is "twenty-five million, eight hundred six thousand, eight hundred seventy-five".