25805875 has 8 divisors (see below), whose sum is σ = 32205888. Its totient is φ = 20644600.

The previous prime is 25805869. The next prime is 25805947. The reversal of 25805875 is 57850852.

It is not a de Polignac number, because 25805875 - 2¹³ = 25797683 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103099 + ... + 103348.

It is an arithmetic number, because the mean of its divisors is an integer number (4025736).

Almost surely, 2^25805875 is an apocalyptic number.

25805875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25805875 is a deficient number, since it is larger than the sum of its proper divisors (6400013).

25805875 is an equidigital number, since it uses as much as digits as its factorization.

25805875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206462 (or 206452 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 25805875 is about 5079.9483265088. The cubic root of 25805875 is about 295.5104635062.

The spelling of 25805875 in words is "twenty-five million, eight hundred five thousand, eight hundred seventy-five".