255755779 has 2 divisors, whose sum is σ = 255755780. Its totient is φ = 255755778.

The previous prime is 255755777. The next prime is 255755813. The reversal of 255755779 is 977557552.

255755779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255755779 - 2¹ = 255755777 is a prime.

It is a super-2 number, since 2×255755779² = 130822036983793682, which contains 22 as substring.

Together with 255755777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255755771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127877889 + 127877890.

It is an arithmetic number, because the mean of its divisors is an integer number (127877890).

Almost surely, 2^255755779 is an apocalyptic number.

255755779 is a deficient number, since it is larger than the sum of its proper divisors (1).

255755779 is an equidigital number, since it uses as much as digits as its factorization.

255755779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3858750, while the sum is 52.

The square root of 255755779 is about 15992.3662726940. The cubic root of 255755779 is about 634.7584416116.

The spelling of 255755779 in words is "two hundred fifty-five million, seven hundred fifty-five thousand, seven hundred seventy-nine".