25560878 has 16 divisors (see below), whose sum is σ = 44254944. Its totient is φ = 10845600.

The previous prime is 25560869. The next prime is 25560907. The reversal of 25560878 is 87806552.

It is a congruent 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, 7625 + ... + 10452.

It is an arithmetic number, because the mean of its divisors is an integer number (2765934).

Almost surely, 2^25560878 is an apocalyptic number.

25560878 is a deficient number, since it is larger than the sum of its proper divisors (18694066).

25560878 is a wasteful number, since it uses less digits than its factorization.

25560878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18187.

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

The square root of 25560878 is about 5055.7766960181. The cubic root of 25560878 is about 294.5723113902.

The spelling of 25560878 in words is "twenty-five million, five hundred sixty thousand, eight hundred seventy-eight".