25850002354656 has 48 divisors (see below), whose sum is σ = 69690209060304. Its totient is φ = 8383784546304.

The previous prime is 25850002354613. The next prime is 25850002354727. The reversal of 25850002354656 is 65645320005852.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 25850002354599 and 25850002354608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3638791825 + ... + 3638798928.

It is an arithmetic number, because the mean of its divisors is an integer number (1451879355423).

Almost surely, 2^{25850002354656} is an apocalyptic number.

It is an amenable number.

25850002354656 is an abundant number, since it is smaller than the sum of its proper divisors (43840206705648).

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

25850002354656 is a wasteful number, since it uses less digits than its factorization.

25850002354656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277590803 (or 7277590795 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 51.

The spelling of 25850002354656 in words is "twenty-five trillion, eight hundred fifty billion, two million, three hundred fifty-four thousand, six hundred fifty-six".