256710733 has 2 divisors, whose sum is σ = 256710734. Its totient is φ = 256710732.

The previous prime is 256710719. The next prime is 256710739. The reversal of 256710733 is 337017652.

256710733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183385764 + 73324969 = 13542^2 + 8563^2 .

It is a cyclic number.

It is not a de Polignac number, because 256710733 - 2⁹ = 256710221 is a prime.

It is a super-3 number, since 3×256710733³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256710739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128355366 + 128355367.

It is an arithmetic number, because the mean of its divisors is an integer number (128355367).

Almost surely, 2^256710733 is an apocalyptic number.

It is an amenable number.

256710733 is a deficient number, since it is larger than the sum of its proper divisors (1).

256710733 is an equidigital number, since it uses as much as digits as its factorization.

256710733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 256710733 is about 16022.1950119202. The cubic root of 256710733 is about 635.5474915311.

The spelling of 256710733 in words is "two hundred fifty-six million, seven hundred ten thousand, seven hundred thirty-three".