25391875 has 10 divisors (see below), whose sum is σ = 31730468. Its totient is φ = 20313000.

The previous prime is 25391867. The next prime is 25391893. The reversal of 25391875 is 57819352.

It is not a de Polignac number, because 25391875 - 2³ = 25391867 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 9 ways as a sum of consecutive naturals, for example, 19689 + ... + 20938.

Almost surely, 2^25391875 is an apocalyptic number.

25391875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25391875 is a deficient number, since it is larger than the sum of its proper divisors (6338593).

25391875 is an frugal number, since it uses more digits than its factorization.

25391875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40647 (or 40632 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 25391875 is about 5039.0351258946. The cubic root of 25391875 is about 293.9216591366.

The spelling of 25391875 in words is "twenty-five million, three hundred ninety-one thousand, eight hundred seventy-five".