25256806 has 16 divisors (see below), whose sum is σ = 40184928. Its totient is φ = 11880000.

The previous prime is 25256771. The next prime is 25256809. The reversal of 25256806 is 60865252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256809) by changing a digit.

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, 1695 + ... + 7306.

It is an arithmetic number, because the mean of its divisors is an integer number (2511558).

Almost surely, 2^25256806 is an apocalyptic number.

25256806 is a deficient number, since it is larger than the sum of its proper divisors (14928122).

25256806 is a wasteful number, since it uses less digits than its factorization.

25256806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 25256806 is about 5025.6149872429. The cubic root of 25256806 is about 293.3995721051.

It can be divided in two parts, 25256 and 806, that added together give a palindrome (26062).

The spelling of 25256806 in words is "twenty-five million, two hundred fifty-six thousand, eight hundred six".