255942311 has 2 divisors, whose sum is σ = 255942312. Its totient is φ = 255942310.

The previous prime is 255942277. The next prime is 255942317. The reversal of 255942311 is 113249552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255942311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255942317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127971155 + 127971156.

It is an arithmetic number, because the mean of its divisors is an integer number (127971156).

Almost surely, 2^255942311 is an apocalyptic number.

255942311 is a deficient number, since it is larger than the sum of its proper divisors (1).

255942311 is an equidigital number, since it uses as much as digits as its factorization.

255942311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 255942311 is about 15998.1971171754. The cubic root of 255942311 is about 634.9127215899.

The spelling of 255942311 in words is "two hundred fifty-five million, nine hundred forty-two thousand, three hundred eleven".