256225732248 has 16 divisors (see below), whose sum is σ = 640564330680. Its totient is φ = 85408577408.

The previous prime is 256225732211. The next prime is 256225732261. The reversal of 256225732248 is 842237522652.

It is a junction number, because it is equal to n+sod(n) for n = 256225732197 and 256225732206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5338036065 + ... + 5338036112.

Almost surely, 2^256225732248 is an apocalyptic number.

It is an amenable number.

256225732248 is an abundant number, since it is smaller than the sum of its proper divisors (384338598432).

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

256225732248 is a wasteful number, since it uses less digits than its factorization.

256225732248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10676072186 (or 10676072182 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 48.

The spelling of 256225732248 in words is "two hundred fifty-six billion, two hundred twenty-five million, seven hundred thirty-two thousand, two hundred forty-eight".