25108316928 has 144 divisors (see below), whose sum is σ = 76810658400. Its totient is φ = 8080773120.

The previous prime is 25108316927. The next prime is 25108316939. The reversal of 25108316928 is 82961380152.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (25108316927) 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, 137818 + ... + 263078.

It is an arithmetic number, because the mean of its divisors is an integer number (533407350).

Almost surely, 2^25108316928 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 25108316928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38405329200).

25108316928 is an abundant number, since it is smaller than the sum of its proper divisors (51702341472).

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

25108316928 is a wasteful number, since it uses less digits than its factorization.

25108316928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125315 (or 125295 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 25108316928 in words is "twenty-five billion, one hundred eight million, three hundred sixteen thousand, nine hundred twenty-eight".