25385486888 has 32 divisors (see below), whose sum is σ = 48440208000. Its totient is φ = 12469133952.

The previous prime is 25385486881. The next prime is 25385486909. The reversal of 25385486888 is 88868458352.

It is not an unprimeable number, because it can be changed into a prime (25385486881) 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 7 ways as a sum of consecutive naturals, for example, 132188 + ... + 261236.

It is an arithmetic number, because the mean of its divisors is an integer number (1513756500).

Almost surely, 2^25385486888 is an apocalyptic number.

It is an amenable number.

25385486888 is a deficient number, since it is larger than the sum of its proper divisors (23054721112).

25385486888 is a wasteful number, since it uses less digits than its factorization.

25385486888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129489 (or 129485 counting only the distinct ones).

The product of its digits is 117964800, while the sum is 65.

The spelling of 25385486888 in words is "twenty-five billion, three hundred eighty-five million, four hundred eighty-six thousand, eight hundred eighty-eight".