255888277 has 2 divisors, whose sum is σ = 255888278. Its totient is φ = 255888276.

The previous prime is 255888221. The next prime is 255888299. The reversal of 255888277 is 772888552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239816196 + 16072081 = 15486^2 + 4009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255888277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255888077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127944138 + 127944139.

It is an arithmetic number, because the mean of its divisors is an integer number (127944139).

Almost surely, 2^255888277 is an apocalyptic number.

It is an amenable number.

255888277 is a deficient number, since it is larger than the sum of its proper divisors (1).

255888277 is an equidigital number, since it uses as much as digits as its factorization.

255888277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2508800, while the sum is 52.

The square root of 255888277 is about 15996.5082752456. The cubic root of 255888277 is about 634.8680379678.

The spelling of 255888277 in words is "two hundred fifty-five million, eight hundred eighty-eight thousand, two hundred seventy-seven".