2555680266 has 12 divisors (see below), whose sum is σ = 5537307282. Its totient is φ = 851893416.

The previous prime is 2555680241. The next prime is 2555680273. The reversal of 2555680266 is 6620865552.

2555680266 is a `hidden beast` number, since 25 + 5 + 568 + 0 + 2 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2192206041 + 363474225 = 46821^2 + 19065^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70991101 + ... + 70991136.

Almost surely, 2^2555680266 is an apocalyptic number.

2555680266 is an abundant number, since it is smaller than the sum of its proper divisors (2981627016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555680266 is a wasteful number, since it uses less digits than its factorization.

2555680266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141982245 (or 141982242 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 2555680266 is about 50553.7364197742. The cubic root of 2555680266 is about 1367.2108823554.

The spelling of 2555680266 in words is "two billion, five hundred fifty-five million, six hundred eighty thousand, two hundred sixty-six".