25808863080 has 512 divisors, whose sum is σ = 106785423360. Its totient is φ = 4815728640.

The previous prime is 25808863049. The next prime is 25808863081. The reversal of 25808863080 is 8036880852.

It is not an unprimeable number, because it can be changed into a prime (25808863081) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4441537 + ... + 4447343.

It is an arithmetic number, because the mean of its divisors is an integer number (208565280).

Almost surely, 2^25808863080 is an apocalyptic number.

25808863080 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 25808863080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53392711680).

25808863080 is an abundant number, since it is smaller than the sum of its proper divisors (80976560280).

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

25808863080 is a wasteful number, since it uses less digits than its factorization.

25808863080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5885 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

It can be divided in two parts, 25808 and 863080, that added together give a palindrome (888888).

The spelling of 25808863080 in words is "twenty-five billion, eight hundred eight million, eight hundred sixty-three thousand, eighty".