25889530730 has 96 divisors (see below), whose sum is σ = 55574792064. Its totient is φ = 8653647744.

The previous prime is 25889530703. The next prime is 25889530753. The reversal of 25889530730 is 3703598852.

It is a super-2 number, since 2×25889530730² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17339864 + ... + 17341356.

It is an arithmetic number, because the mean of its divisors is an integer number (578904084).

Almost surely, 2^25889530730 is an apocalyptic number.

25889530730 is an abundant number, since it is smaller than the sum of its proper divisors (29685261334).

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

25889530730 is a wasteful number, since it uses less digits than its factorization.

25889530730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 25889530730 in words is "twenty-five billion, eight hundred eighty-nine million, five hundred thirty thousand, seven hundred thirty".