256259714 has 4 divisors (see below), whose sum is σ = 384389574. Its totient is φ = 128129856.

The previous prime is 256259701. The next prime is 256259723. The reversal of 256259714 is 417952652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 153338689 + 102921025 = 12383^2 + 10145^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64064927 + ... + 64064930.

Almost surely, 2^256259714 is an apocalyptic number.

256259714 is a deficient number, since it is larger than the sum of its proper divisors (128129860).

256259714 is a wasteful number, since it uses less digits than its factorization.

256259714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128129859.

The product of its digits is 151200, while the sum is 41.

The square root of 256259714 is about 16008.1140050913. The cubic root of 256259714 is about 635.1750723176.

The spelling of 256259714 in words is "two hundred fifty-six million, two hundred fifty-nine thousand, seven hundred fourteen".