25489608 has 64 divisors (see below), whose sum is σ = 67262400. Its totient is φ = 8037120.

The previous prime is 25489601. The next prime is 25489609. The reversal of 25489608 is 80698452.

It is a super-3 number, since 3×25489608³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25489608.

It is not an unprimeable number, because it can be changed into a prime (25489601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36543 + ... + 37233.

It is an arithmetic number, because the mean of its divisors is an integer number (1050975).

Almost surely, 2^25489608 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 25489608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33631200).

25489608 is an abundant number, since it is smaller than the sum of its proper divisors (41772792).

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

25489608 is a wasteful number, since it uses less digits than its factorization.

25489608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 25489608 is about 5048.7234030000. The cubic root of 25489608 is about 294.2982765780.

The spelling of 25489608 in words is "twenty-five million, four hundred eighty-nine thousand, six hundred eight".