255911377 has 2 divisors, whose sum is σ = 255911378. Its totient is φ = 255911376.

The previous prime is 255911333. The next prime is 255911389. The reversal of 255911377 is 773119552.

255911377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251412736 + 4498641 = 15856^2 + 2121^2 .

It is a cyclic number.

It is not a de Polignac number, because 255911377 - 2¹⁹ = 255387089 is a prime.

It is a super-2 number, since 2×255911377² = 130981265756072258, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 255911377 parts by 22623 straight cuts.

It is equal to p_13984960 and since 255911377 and 13984960 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255911177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127955688 + 127955689.

It is an arithmetic number, because the mean of its divisors is an integer number (127955689).

Almost surely, 2^255911377 is an apocalyptic number.

It is an amenable number.

255911377 is a deficient number, since it is larger than the sum of its proper divisors (1).

255911377 is an equidigital number, since it uses as much as digits as its factorization.

255911377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 40.

The square root of 255911377 is about 15997.2302915223. The cubic root of 255911377 is about 634.8871413705.

The spelling of 255911377 in words is "two hundred fifty-five million, nine hundred eleven thousand, three hundred seventy-seven".