25318080 has 168 divisors, whose sum is σ = 89154000. Its totient is φ = 6592512.

The previous prime is 25318061. The next prime is 25318081. The reversal of 25318080 is 8081352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169846 + ... + 169994.

Almost surely, 2^25318080 is an apocalyptic number.

25318080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25318080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44577000).

25318080 is an abundant number, since it is smaller than the sum of its proper divisors (63835920).

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

25318080 is a wasteful number, since it uses less digits than its factorization.

25318080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 25318080 is about 5031.7074636747. The cubic root of 25318080 is about 293.6366467730.

The spelling of 25318080 in words is "twenty-five million, three hundred eighteen thousand, eighty".