25282780 has 24 divisors (see below), whose sum is σ = 54925920. Its totient is φ = 9764160.

The previous prime is 25282769. The next prime is 25282781. The reversal of 25282780 is 8728252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25282781) 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 7 ways as a sum of consecutive naturals, for example, 21216 + ... + 22375.

It is an arithmetic number, because the mean of its divisors is an integer number (2288580).

Almost surely, 2^25282780 is an apocalyptic number.

25282780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25282780 is an abundant number, since it is smaller than the sum of its proper divisors (29643140).

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

25282780 is a wasteful number, since it uses less digits than its factorization.

25282780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43629 (or 43627 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 25282780 is about 5028.1984845469. The cubic root of 25282780 is about 293.5001146359.

It can be divided in two parts, 25282 and 780, that added together give a palindrome (26062).

The spelling of 25282780 in words is "twenty-five million, two hundred eighty-two thousand, seven hundred eighty".