25822140 has 48 divisors (see below), whose sum is σ = 76110720. Its totient is φ = 6523200.

The previous prime is 25822109. The next prime is 25822141. The reversal of 25822140 is 4122852.

It is a self number, because there is not a number n which added to its sum of digits gives 25822140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25822141) 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 15 ways as a sum of consecutive naturals, for example, 10186 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (1585640).

Almost surely, 2^25822140 is an apocalyptic number.

25822140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25822140 is an abundant number, since it is smaller than the sum of its proper divisors (50288580).

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

25822140 is a wasteful number, since it uses less digits than its factorization.

25822140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682 (or 22680 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 25822140 is about 5081.5489764441. The cubic root of 25822140 is about 295.5725355244.

Adding to 25822140 its reverse (4122852), we get a palindrome (29944992).

The spelling of 25822140 in words is "twenty-five million, eight hundred twenty-two thousand, one hundred forty".