256512041235 has 96 divisors (see below), whose sum is σ = 477452371968. Its totient is φ = 127093274880.

The previous prime is 256512041207. The next prime is 256512041237. The reversal of 256512041235 is 532140215652.

256512041235 is a `hidden beast` number, since 2 + 565 + 1 + 20 + 41 + 2 + 35 = 666.

It is not a de Polignac number, because 256512041235 - 2⁹ = 256512040723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256512041235.

It is not an unprimeable number, because it can be changed into a prime (256512041237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6352369 + ... + 6392621.

It is an arithmetic number, because the mean of its divisors is an integer number (4973462208).

Almost surely, 2^256512041235 is an apocalyptic number.

256512041235 is a deficient number, since it is larger than the sum of its proper divisors (220940330733).

256512041235 is a wasteful number, since it uses less digits than its factorization.

256512041235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40465 (or 40462 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 256512041235 its reverse (532140215652), we get a palindrome (788652256887).

The spelling of 256512041235 in words is "two hundred fifty-six billion, five hundred twelve million, forty-one thousand, two hundred thirty-five".