25888000 has 72 divisors (see below), whose sum is σ = 64569960. Its totient is φ = 10342400.

The previous prime is 25887997. The next prime is 25888019. The reversal of 25888000 is 88852.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 25887744 = 16^2 + 5088^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31596 + ... + 32404.

It is an arithmetic number, because the mean of its divisors is an integer number (896805).

Almost surely, 2^25888000 is an apocalyptic number.

25888000 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 25888000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32284980).

25888000 is an abundant number, since it is smaller than the sum of its proper divisors (38681960).

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

25888000 is an frugal number, since it uses more digits than its factorization.

25888000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 25888000 is about 5088.0251571705. The cubic root of 25888000 is about 295.8236105160.

The spelling of 25888000 in words is "twenty-five million, eight hundred eighty-eight thousand".