256502611050 has 96 divisors (see below), whose sum is σ = 728281065600. Its totient is φ = 58525992960.

The previous prime is 256502611033. The next prime is 256502611063. The reversal of 256502611050 is 50116205652.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382786 + ... + 812114.

It is an arithmetic number, because the mean of its divisors is an integer number (7586261100).

Almost surely, 2^256502611050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256502611050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364140532800).

256502611050 is an abundant number, since it is smaller than the sum of its proper divisors (471778454550).

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

256502611050 is a wasteful number, since it uses less digits than its factorization.

256502611050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429920 (or 429915 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 256502611050 in words is "two hundred fifty-six billion, five hundred two million, six hundred eleven thousand, fifty".