255250778055 has 64 divisors (see below), whose sum is σ = 502819215360. Its totient is φ = 107673463296.

The previous prime is 255250778039. The next prime is 255250778071. The reversal of 255250778055 is 550877052552.

It is an interprime number because it is at equal distance from previous prime (255250778039) and next prime (255250778071).

It is not a de Polignac number, because 255250778055 - 2⁴ = 255250778039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255250777989 and 255250778007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4172469 + ... + 4233201.

It is an arithmetic number, because the mean of its divisors is an integer number (7856550240).

Almost surely, 2^255250778055 is an apocalyptic number.

255250778055 is a deficient number, since it is larger than the sum of its proper divisors (247568437305).

255250778055 is a wasteful number, since it uses less digits than its factorization.

255250778055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63840.

The product of its (nonzero) digits is 4900000, while the sum is 51.

The spelling of 255250778055 in words is "two hundred fifty-five billion, two hundred fifty million, seven hundred seventy-eight thousand, fifty-five".