25878786 has 8 divisors (see below), whose sum is σ = 51757584. Its totient is φ = 8626260.

The previous prime is 25878763. The next prime is 25878793. The reversal of 25878786 is 68787852.

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

25878786 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156560 + ... + 2156571.

It is an arithmetic number, because the mean of its divisors is an integer number (6469698).

Almost surely, 2^25878786 is an apocalyptic number.

25878786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25878786 is a wasteful number, since it uses less digits than its factorization.

25878786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313136.

The product of its digits is 1505280, while the sum is 51.

The square root of 25878786 is about 5087.1196172294. The cubic root of 25878786 is about 295.7885100552.

The spelling of 25878786 in words is "twenty-five million, eight hundred seventy-eight thousand, seven hundred eighty-six".