2775265291 has 2 divisors, whose sum is σ = 2775265292. Its totient is φ = 2775265290.

The previous prime is 2775265289. The next prime is 2775265303. The reversal of 2775265291 is 1925625772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2775265291 - 2¹ = 2775265289 is a prime.

Together with 2775265289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2775265231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387632645 + 1387632646.

It is an arithmetic number, because the mean of its divisors is an integer number (1387632646).

Almost surely, 2^2775265291 is an apocalyptic number.

2775265291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775265291 is an equidigital number, since it uses as much as digits as its factorization.

2775265291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 2775265291 is about 52680.7867348239. The cubic root of 2775265291 is about 1405.2971583062.

It can be divided in two parts, 2775265 and 291, that added together give a square (2775556 = 1666²).

The spelling of 2775265291 in words is "two billion, seven hundred seventy-five million, two hundred sixty-five thousand, two hundred ninety-one".