256753256 has 8 divisors (see below), whose sum is σ = 481412370. Its totient is φ = 128376624.

The previous prime is 256753201. The next prime is 256753267. The reversal of 256753256 is 652357652.

It can be written as a sum of positive squares in only one way, i.e., 239197156 + 17556100 = 15466^2 + 4190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16047071 + ... + 16047086.

Almost surely, 2^256753256 is an apocalyptic number.

It is an amenable number.

256753256 is a deficient number, since it is larger than the sum of its proper divisors (224659114).

256753256 is a wasteful number, since it uses less digits than its factorization.

256753256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094163 (or 32094159 counting only the distinct ones).

The product of its digits is 378000, while the sum is 41.

The square root of 256753256 is about 16023.5219599188. The cubic root of 256753256 is about 635.5825814727.

The spelling of 256753256 in words is "two hundred fifty-six million, seven hundred fifty-three thousand, two hundred fifty-six".