255776047 has 2 divisors, whose sum is σ = 255776048. Its totient is φ = 255776046.

The previous prime is 255776023. The next prime is 255776057. The reversal of 255776047 is 740677552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255776047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255775994 and 255776012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255776057) 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, 127888023 + 127888024.

It is an arithmetic number, because the mean of its divisors is an integer number (127888024).

Almost surely, 2^255776047 is an apocalyptic number.

255776047 is a deficient number, since it is larger than the sum of its proper divisors (1).

255776047 is an equidigital number, since it uses as much as digits as its factorization.

255776047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 43.

The square root of 255776047 is about 15992.9999374726. Note that the first 4 decimals coincide. The cubic root of 255776047 is about 634.7752088368.

The spelling of 255776047 in words is "two hundred fifty-five million, seven hundred seventy-six thousand, forty-seven".