256006675475 has 12 divisors (see below), whose sum is σ = 317469398664. Its totient is φ = 204791713920.

The previous prime is 256006675471. The next prime is 256006675481. The reversal of 256006675475 is 574576600652.

It is a happy number.

It is not a de Polignac number, because 256006675475 - 2² = 256006675471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256006675471) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 51452 + ... + 717398.

It is an arithmetic number, because the mean of its divisors is an integer number (26455783222).

Almost surely, 2^256006675475 is an apocalyptic number.

256006675475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256006675475 is a deficient number, since it is larger than the sum of its proper divisors (61462723189).

256006675475 is a wasteful number, since it uses less digits than its factorization.

256006675475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681334 (or 681329 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 256006675475 in words is "two hundred fifty-six billion, six million, six hundred seventy-five thousand, four hundred seventy-five".