2771812253 has 6 divisors (see below), whose sum is σ = 3224353086. Its totient is φ = 2375839032.

The previous prime is 2771812247. The next prime is 2771812259. The reversal of 2771812253 is 3522181772.

It is an interprime number because it is at equal distance from previous prime (2771812247) and next prime (2771812259).

It can be written as a sum of positive squares in only one way, i.e., 1651772164 + 1120040089 = 40642^2 + 33467^2 .

It is not a de Polignac number, because 2771812253 - 2⁴ = 2771812237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771812259) 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, 28283750 + ... + 28283847.

It is an arithmetic number, because the mean of its divisors is an integer number (537392181).

Almost surely, 2^2771812253 is an apocalyptic number.

It is an amenable number.

2771812253 is a deficient number, since it is larger than the sum of its proper divisors (452540833).

2771812253 is an equidigital number, since it uses as much as digits as its factorization.

2771812253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56567611 (or 56567604 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 2771812253 is about 52648.0033144658. The cubic root of 2771812253 is about 1404.7140839073.

The spelling of 2771812253 in words is "two billion, seven hundred seventy-one million, eight hundred twelve thousand, two hundred fifty-three".