25804000 has 48 divisors (see below), whose sum is σ = 63410256. Its totient is φ = 10320000.

The previous prime is 25803991. The next prime is 25804001. The reversal of 25804000 is 40852.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25804001) 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, 775 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (1321047).

Almost surely, 2^25804000 is an apocalyptic number.

25804000 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 25804000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31705128).

25804000 is an abundant number, since it is smaller than the sum of its proper divisors (37606256).

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

25804000 is an equidigital number, since it uses as much as digits as its factorization.

25804000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476 (or 6458 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 25804000 is about 5079.7637740352. The cubic root of 25804000 is about 295.5033062789.

Adding to 25804000 its reverse (40852), we get a palindrome (25844852).

The spelling of 25804000 in words is "twenty-five million, eight hundred four thousand".