25585879 has 8 divisors (see below), whose sum is σ = 27953280. Its totient is φ = 23225400.

The previous prime is 25585873. The next prime is 25585883. The reversal of 25585879 is 97858552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25585879 - 2³ = 25585871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25585871) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8844 + ... + 11374.

It is an arithmetic number, because the mean of its divisors is an integer number (3494160).

Almost surely, 2^25585879 is an apocalyptic number.

25585879 is a deficient number, since it is larger than the sum of its proper divisors (2367401).

25585879 is a wasteful number, since it uses less digits than its factorization.

25585879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461.

The product of its digits is 1008000, while the sum is 49.

The square root of 25585879 is about 5058.2486099440. The cubic root of 25585879 is about 294.6683201236.

The spelling of 25585879 in words is "twenty-five million, five hundred eighty-five thousand, eight hundred seventy-nine".