255250055249 has 6 divisors (see below), whose sum is σ = 296923533714. Its totient is φ = 218785761600.

The previous prime is 255250055213. The next prime is 255250055251. The reversal of 255250055249 is 942550052552.

It can be written as a sum of positive squares in only one way, i.e., 196585824400 + 58664230849 = 443380^2 + 242207^2 .

It is a de Polignac number, because none of the positive numbers 2^k-255250055249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255250055209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2604592352 + ... + 2604592449.

It is an arithmetic number, because the mean of its divisors is an integer number (49487255619).

Almost surely, 2^255250055249 is an apocalyptic number.

It is an amenable number.

255250055249 is a deficient number, since it is larger than the sum of its proper divisors (41673478465).

255250055249 is an equidigital number, since it uses as much as digits as its factorization.

255250055249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209184815 (or 5209184808 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 255250055249 in words is "two hundred fifty-five billion, two hundred fifty million, fifty-five thousand, two hundred forty-nine".