25313380008 has 192 divisors, whose sum is σ = 75581890560. Its totient is φ = 7040363904.

The previous prime is 25313380003. The next prime is 25313380019. The reversal of 25313380008 is 80008331352.

It is not an unprimeable number, because it can be changed into a prime (25313380003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19366891 + ... + 19368197.

It is an arithmetic number, because the mean of its divisors is an integer number (393655680).

Almost surely, 2^25313380008 is an apocalyptic number.

25313380008 is a gapful number since it is divisible by the number (28) 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 25313380008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37790945280).

25313380008 is an abundant number, since it is smaller than the sum of its proper divisors (50268510552).

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

25313380008 is a wasteful number, since it uses less digits than its factorization.

25313380008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 25313380008 in words is "twenty-five billion, three hundred thirteen million, three hundred eighty thousand, eight".