25750282240 has 112 divisors (see below), whose sum is σ = 62281612800. Its totient is φ = 10219356160.

The previous prime is 25750282169. The next prime is 25750282253. The reversal of 25750282240 is 4228205752.

It is a self number, because there is not a number n which added to its sum of digits gives 25750282240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5363361 + ... + 5368159.

Almost surely, 2^25750282240 is an apocalyptic number.

25750282240 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 25750282240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31140806400).

25750282240 is an abundant number, since it is smaller than the sum of its proper divisors (36531330560).

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

25750282240 is an equidigital number, since it uses as much as digits as its factorization.

25750282240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 25750282240 its reverse (4228205752), we get a palindrome (29978487992).

The spelling of 25750282240 in words is "twenty-five billion, seven hundred fifty million, two hundred eighty-two thousand, two hundred forty".