25585008 has 80 divisors (see below), whose sum is σ = 68700960. Its totient is φ = 8200192.

The previous prime is 25584997. The next prime is 25585009. The reversal of 25585008 is 80058552.

It is a self number, because there is not a number n which added to its sum of digits gives 25585008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25585009) 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, 226360 + ... + 226472.

It is an arithmetic number, because the mean of its divisors is an integer number (858762).

Almost surely, 2^25585008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25585008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34350480).

25585008 is an abundant number, since it is smaller than the sum of its proper divisors (43115952).

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

25585008 is a wasteful number, since it uses less digits than its factorization.

25585008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 25585008 is about 5058.1625122173. The cubic root of 25585008 is about 294.6649763649.

The spelling of 25585008 in words is "twenty-five million, five hundred eighty-five thousand, eight".