255018877 has 2 divisors, whose sum is σ = 255018878. Its totient is φ = 255018876.

The previous prime is 255018847. The next prime is 255018889. The reversal of 255018877 is 778810552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164121721 + 90897156 = 12811^2 + 9534^2 .

It is a cyclic number.

It is not a de Polignac number, because 255018877 - 2⁷ = 255018749 is a prime.

It is a super-2 number, since 2×255018877² = 130069255252682258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255018847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127509438 + 127509439.

It is an arithmetic number, because the mean of its divisors is an integer number (127509439).

Almost surely, 2^255018877 is an apocalyptic number.

It is an amenable number.

255018877 is a deficient number, since it is larger than the sum of its proper divisors (1).

255018877 is an equidigital number, since it uses as much as digits as its factorization.

255018877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156800, while the sum is 43.

The square root of 255018877 is about 15969.3104735302. The cubic root of 255018877 is about 634.1482178917.

The spelling of 255018877 in words is "two hundred fifty-five million, eighteen thousand, eight hundred seventy-seven".