25889971562 has 48 divisors (see below), whose sum is σ = 48777095232. Its totient is φ = 10089256320.

The previous prime is 25889971559. The next prime is 25889971607. The reversal of 25889971562 is 26517998852.

It is a junction number, because it is equal to n+sod(n) for n = 25889971495 and 25889971504.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 76862 + ... + 240182.

It is an arithmetic number, because the mean of its divisors is an integer number (1016189484).

Almost surely, 2^25889971562 is an apocalyptic number.

25889971562 is a deficient number, since it is larger than the sum of its proper divisors (22887123670).

25889971562 is a wasteful number, since it uses less digits than its factorization.

25889971562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163423 (or 163410 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 62.

The spelling of 25889971562 in words is "twenty-five billion, eight hundred eighty-nine million, nine hundred seventy-one thousand, five hundred sixty-two".