25688016 has 60 divisors (see below), whose sum is σ = 74564672. Its totient is φ = 8561376.

The previous prime is 25688011. The next prime is 25688023. The reversal of 25688016 is 61088652.

It is a happy number.

25688016 is a `hidden beast` number, since 2 + 568 + 80 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25688011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585 + ... + 7191.

Almost surely, 2^25688016 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 25688016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37282336).

25688016 is an abundant number, since it is smaller than the sum of its proper divisors (48876656).

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

25688016 is an equidigital number, since it uses as much as digits as its factorization.

25688016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630 (or 6612 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25688016 is about 5068.3346377286. The cubic root of 25688016 is about 295.0598978249.

The spelling of 25688016 in words is "twenty-five million, six hundred eighty-eight thousand, sixteen".