25989168 has 40 divisors (see below), whose sum is σ = 68067568. Its totient is φ = 8543232.

The previous prime is 25989151. The next prime is 25989181. The reversal of 25989168 is 86198952.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 7212.

Almost surely, 2^25989168 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 25989168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34033784).

25989168 is an abundant number, since it is smaller than the sum of its proper divisors (42078400).

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

25989168 is a wasteful number, since it uses less digits than its factorization.

25989168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501 (or 7495 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 25989168 is about 5097.9572379533. The cubic root of 25989168 is about 296.2084604115.

The spelling of 25989168 in words is "twenty-five million, nine hundred eighty-nine thousand, one hundred sixty-eight".