25996878 has 12 divisors (see below), whose sum is σ = 56326608. Its totient is φ = 8665620.

The previous prime is 25996837. The next prime is 25996889. The reversal of 25996878 is 87869952.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 722118 + ... + 722153.

It is an arithmetic number, because the mean of its divisors is an integer number (4693884).

Almost surely, 2^25996878 is an apocalyptic number.

25996878 is an abundant number, since it is smaller than the sum of its proper divisors (30329730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25996878 is a wasteful number, since it uses less digits than its factorization.

25996878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444279 (or 1444276 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 25996878 is about 5098.7133671153. The cubic root of 25996878 is about 296.2377487857.

The spelling of 25996878 in words is "twenty-five million, nine hundred ninety-six thousand, eight hundred seventy-eight".