255343951 has 2 divisors, whose sum is σ = 255343952. Its totient is φ = 255343950.

The previous prime is 255343897. The next prime is 255343969. The reversal of 255343951 is 159343552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255343951 - 2¹¹ = 255341903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255343951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255343981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127671975 + 127671976.

It is an arithmetic number, because the mean of its divisors is an integer number (127671976).

Almost surely, 2^255343951 is an apocalyptic number.

255343951 is a deficient number, since it is larger than the sum of its proper divisors (1).

255343951 is an equidigital number, since it uses as much as digits as its factorization.

255343951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 255343951 is about 15979.4853171183. The cubic root of 255343951 is about 634.4175542518.

The spelling of 255343951 in words is "two hundred fifty-five million, three hundred forty-three thousand, nine hundred fifty-one".