25850286 has 64 divisors (see below), whose sum is σ = 71631360. Its totient is φ = 6713280.

The previous prime is 25850261. The next prime is 25850287. The reversal of 25850286 is 68205852.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25850286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25850287) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1050 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (1119240).

Almost surely, 2^25850286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25850286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35815680).

25850286 is an abundant number, since it is smaller than the sum of its proper divisors (45781074).

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

25850286 is a wasteful number, since it uses less digits than its factorization.

25850286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246 (or 6240 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 25850286 is about 5084.3176533336. The cubic root of 25850286 is about 295.6798873782.

The spelling of 25850286 in words is "twenty-five million, eight hundred fifty thousand, two hundred eighty-six".