25308080 has 80 divisors (see below), whose sum is σ = 68876544. Its totient is φ = 8467200.

The previous prime is 25308077. The next prime is 25308089. The reversal of 25308080 is 8080352.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (25308089) 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, 23555 + ... + 24605.

Almost surely, 2^25308080 is an apocalyptic number.

25308080 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 25308080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34438272).

25308080 is an abundant number, since it is smaller than the sum of its proper divisors (43568464).

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

25308080 is a wasteful number, since it uses less digits than its factorization.

25308080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25308080 is about 5030.7136670655. The cubic root of 25308080 is about 293.5979820040.

The spelling of 25308080 in words is "twenty-five million, three hundred eight thousand, eighty".