25866360 has 96 divisors (see below), whose sum is σ = 90548640. Its totient is φ = 6365952.

The previous prime is 25866341. The next prime is 25866361. The reversal of 25866360 is 6366852.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25866361) 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 23 ways as a sum of consecutive naturals, for example, 1917 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (943215).

Almost surely, 2^25866360 is an apocalyptic number.

25866360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25866360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45274320).

25866360 is an abundant number, since it is smaller than the sum of its proper divisors (64682280).

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

25866360 is a wasteful number, since it uses less digits than its factorization.

25866360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557 (or 5550 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 25866360 is about 5085.8981507694. The cubic root of 25866360 is about 295.7411603785.

The spelling of 25866360 in words is "twenty-five million, eight hundred sixty-six thousand, three hundred sixty".