255275349977 has 2 divisors, whose sum is σ = 255275349978. Its totient is φ = 255275349976.

The previous prime is 255275349949. The next prime is 255275349991. The reversal of 255275349977 is 779943572552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230980204816 + 24295145161 = 480604^2 + 155869^2 .

It is a cyclic number.

It is not a de Polignac number, because 255275349977 - 2⁶ = 255275349913 is a prime.

It is a super-3 number, since 3×255275349977³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (255275349947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127637674988 + 127637674989.

It is an arithmetic number, because the mean of its divisors is an integer number (127637674989).

Almost surely, 2^255275349977 is an apocalyptic number.

It is an amenable number.

255275349977 is a deficient number, since it is larger than the sum of its proper divisors (1).

255275349977 is an equidigital number, since it uses as much as digits as its factorization.

255275349977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 166698000, while the sum is 65.

The spelling of 255275349977 in words is "two hundred fifty-five billion, two hundred seventy-five million, three hundred forty-nine thousand, nine hundred seventy-seven".