255275527778 has 8 divisors (see below), whose sum is σ = 383070166380. Its totient is φ = 127585472320.

The previous prime is 255275527777. The next prime is 255275527813. The reversal of 255275527778 is 877725572552.

It can be written as a sum of positive squares in 2 ways, for example, as 196698459049 + 58577068729 = 443507^2 + 242027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255275527778.

It is not an unprimeable number, because it can be changed into a prime (255275527777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26139683 + ... + 26149446.

Almost surely, 2^255275527778 is an apocalyptic number.

255275527778 is a deficient number, since it is larger than the sum of its proper divisors (127794638602).

255275527778 is a wasteful number, since it uses less digits than its factorization.

255275527778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52291572.

The product of its digits is 96040000, while the sum is 62.

The spelling of 255275527778 in words is "two hundred fifty-five billion, two hundred seventy-five million, five hundred twenty-seven thousand, seven hundred seventy-eight".