25788318 has 16 divisors (see below), whose sum is σ = 51626496. Its totient is φ = 8587800.

The previous prime is 25788317. The next prime is 25788331. The reversal of 25788318 is 81388752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25788318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25788317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10605 + ... + 12807.

It is an arithmetic number, because the mean of its divisors is an integer number (3226656).

Almost surely, 2^25788318 is an apocalyptic number.

25788318 is an abundant number, since it is smaller than the sum of its proper divisors (25838178).

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

25788318 is a wasteful number, since it uses less digits than its factorization.

25788318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159.

The product of its digits is 107520, while the sum is 42.

The square root of 25788318 is about 5078.2199637274. The cubic root of 25788318 is about 295.4434315576.

It can be divided in two parts, 25788 and 318, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 25788318 in words is "twenty-five million, seven hundred eighty-eight thousand, three hundred eighteen".