255277550257 has 2 divisors, whose sum is σ = 255277550258. Its totient is φ = 255277550256.

The previous prime is 255277550251. The next prime is 255277550261. The reversal of 255277550257 is 752055772552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223089960976 + 32187589281 = 472324^2 + 179409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255277550257 is a prime.

It is not a weakly prime, because it can be changed into another prime (255277550251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127638775128 + 127638775129.

It is an arithmetic number, because the mean of its divisors is an integer number (127638775129).

Almost surely, 2^255277550257 is an apocalyptic number.

It is an amenable number.

255277550257 is a deficient number, since it is larger than the sum of its proper divisors (1).

255277550257 is an equidigital number, since it uses as much as digits as its factorization.

255277550257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8575000, while the sum is 52.

The spelling of 255277550257 in words is "two hundred fifty-five billion, two hundred seventy-seven million, five hundred fifty thousand, two hundred fifty-seven".