256253047132 has 12 divisors (see below), whose sum is σ = 450303592816. Its totient is φ = 127594877760.

The previous prime is 256253047129. The next prime is 256253047157. The reversal of 256253047132 is 231740352652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132910368 + ... + 132912295.

Almost surely, 2^256253047132 is an apocalyptic number.

It is an amenable number.

256253047132 is a deficient number, since it is larger than the sum of its proper divisors (194050545684).

256253047132 is a wasteful number, since it uses less digits than its factorization.

256253047132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265822908 (or 265822906 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

Adding to 256253047132 its reverse (231740352652), we get a palindrome (487993399784).

The spelling of 256253047132 in words is "two hundred fifty-six billion, two hundred fifty-three million, forty-seven thousand, one hundred thirty-two".