255851903 has 2 divisors, whose sum is σ = 255851904. Its totient is φ = 255851902.

The previous prime is 255851857. The next prime is 255851951. The reversal of 255851903 is 309158552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255851903 - 2⁸ = 255851647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255851963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127925951 + 127925952.

It is an arithmetic number, because the mean of its divisors is an integer number (127925952).

Almost surely, 2^255851903 is an apocalyptic number.

255851903 is a deficient number, since it is larger than the sum of its proper divisors (1).

255851903 is an equidigital number, since it uses as much as digits as its factorization.

255851903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 255851903 is about 15995.3712992228. The cubic root of 255851903 is about 634.8379548073.

The spelling of 255851903 in words is "two hundred fifty-five million, eight hundred fifty-one thousand, nine hundred three".