255257903 has 2 divisors, whose sum is σ = 255257904. Its totient is φ = 255257902.

The previous prime is 255257843. The next prime is 255257909. The reversal of 255257903 is 309752552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255257903 - 2¹² = 255253807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255257909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127628951 + 127628952.

It is an arithmetic number, because the mean of its divisors is an integer number (127628952).

Almost surely, 2^255257903 is an apocalyptic number.

255257903 is a deficient number, since it is larger than the sum of its proper divisors (1).

255257903 is an equidigital number, since it uses as much as digits as its factorization.

255257903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 255257903 is about 15976.7926380735. The cubic root of 255257903 is about 634.3462824180.

The spelling of 255257903 in words is "two hundred fifty-five million, two hundred fifty-seven thousand, nine hundred three".