256253047130 has 32 divisors (see below), whose sum is σ = 482909817600. Its totient is φ = 97774315072.

The previous prime is 256253047129. The next prime is 256253047157. The reversal of 256253047130 is 31740352652.

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 15 ways as a sum of consecutive naturals, for example, 5299010 + ... + 5347149.

It is an arithmetic number, because the mean of its divisors is an integer number (15090931800).

Almost surely, 2^256253047130 is an apocalyptic number.

256253047130 is a deficient number, since it is larger than the sum of its proper divisors (226656770470).

256253047130 is a wasteful number, since it uses less digits than its factorization.

256253047130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646278.

The product of its (nonzero) digits is 151200, while the sum is 38.

Adding to 256253047130 its reverse (31740352652), we get a palindrome (287993399782).

The spelling of 256253047130 in words is "two hundred fifty-six billion, two hundred fifty-three million, forty-seven thousand, one hundred thirty".