25861268 has 6 divisors (see below), whose sum is σ = 45257226. Its totient is φ = 12930632.

The previous prime is 25861247. The next prime is 25861271. The reversal of 25861268 is 86216852.

It can be written as a sum of positive squares in only one way, i.e., 17205904 + 8655364 = 4148^2 + 2942^2 .

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 as a sum of consecutive naturals, namely, 3232655 + ... + 3232662.

It is an arithmetic number, because the mean of its divisors is an integer number (7542871).

Almost surely, 2^25861268 is an apocalyptic number.

It is an amenable number.

25861268 is a deficient number, since it is larger than the sum of its proper divisors (19395958).

25861268 is a wasteful number, since it uses less digits than its factorization.

25861268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465321 (or 6465319 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 25861268 is about 5085.3975262510. The cubic root of 25861268 is about 295.7217527667.

The spelling of 25861268 in words is "twenty-five million, eight hundred sixty-one thousand, two hundred sixty-eight".