25328889016 has 128 divisors (see below), whose sum is σ = 53575257600. Its totient is φ = 11167580160.

The previous prime is 25328889013. The next prime is 25328889041. The reversal of 25328889016 is 61098882352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328889011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61928620 + ... + 61929028.

It is an arithmetic number, because the mean of its divisors is an integer number (418556700).

Almost surely, 2^25328889016 is an apocalyptic number.

It is an amenable number.

25328889016 is an abundant number, since it is smaller than the sum of its proper divisors (28246368584).

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

25328889016 is a wasteful number, since it uses less digits than its factorization.

25328889016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 25328889016 in words is "twenty-five billion, three hundred twenty-eight million, eight hundred eighty-nine thousand, sixteen".