256255012 has 24 divisors (see below), whose sum is σ = 486757376. Its totient is φ = 117337248.

The previous prime is 256255009. The next prime is 256255019. The reversal of 256255012 is 210552652.

It is not an unprimeable number, because it can be changed into a prime (256255019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12798 + ... + 26005.

Almost surely, 2^256255012 is an apocalyptic number.

It is an amenable number.

256255012 is a deficient number, since it is larger than the sum of its proper divisors (230502364).

256255012 is a wasteful number, since it uses less digits than its factorization.

256255012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38947 (or 38945 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 256255012 is about 16007.9671413956. The cubic root of 256255012 is about 635.1711874418.

The spelling of 256255012 in words is "two hundred fifty-six million, two hundred fifty-five thousand, twelve".