255856703 has 2 divisors, whose sum is σ = 255856704. Its totient is φ = 255856702.

The previous prime is 255856661. The next prime is 255856721. The reversal of 255856703 is 307658552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255856703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255856303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127928351 + 127928352.

It is an arithmetic number, because the mean of its divisors is an integer number (127928352).

Almost surely, 2^255856703 is an apocalyptic number.

255856703 is a deficient number, since it is larger than the sum of its proper divisors (1).

255856703 is an equidigital number, since it uses as much as digits as its factorization.

255856703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 255856703 is about 15995.5213419257. The cubic root of 255856703 is about 634.8419248164.

The spelling of 255856703 in words is "two hundred fifty-five million, eight hundred fifty-six thousand, seven hundred three".