25668576 has 72 divisors (see below), whose sum is σ = 75721464. Its totient is φ = 8553600.

The previous prime is 25668557. The next prime is 25668607. The reversal of 25668576 is 67586652.

25668576 is a `hidden beast` number, since 2 + 566 + 85 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6126 + ... + 9426.

It is an arithmetic number, because the mean of its divisors is an integer number (1051687).

Almost surely, 2^25668576 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 25668576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37860732).

25668576 is an abundant number, since it is smaller than the sum of its proper divisors (50052888).

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

25668576 is an equidigital number, since it uses as much as digits as its factorization.

25668576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3306 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 25668576 is about 5066.4164850513. The cubic root of 25668576 is about 294.9854479080.

It can be divided in two parts, 25668 and 576, that added together give a square (26244 = 162²).

The spelling of 25668576 in words is "twenty-five million, six hundred sixty-eight thousand, five hundred seventy-six".