855305257025 has 48 divisors (see below), whose sum is σ = 1109180615040. Its totient is φ = 653425382400.

The previous prime is 855305257013. The next prime is 855305257039. The reversal of 855305257025 is 520752503558.

It is not a de Polignac number, because 855305257025 - 2⁸ = 855305256769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50182505 + ... + 50199545.

It is an arithmetic number, because the mean of its divisors is an integer number (23107929480).

Almost surely, 2^855305257025 is an apocalyptic number.

It is an amenable number.

855305257025 is a deficient number, since it is larger than the sum of its proper divisors (253875358015).

855305257025 is a wasteful number, since it uses less digits than its factorization.

855305257025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17834 (or 17829 counting only the distinct ones).

The product of its (nonzero) digits is 2100000, while the sum is 47.

The spelling of 855305257025 in words is "eight hundred fifty-five billion, three hundred five million, two hundred fifty-seven thousand, twenty-five".