2775552749 has 2 divisors, whose sum is σ = 2775552750. Its totient is φ = 2775552748.

The previous prime is 2775552739. The next prime is 2775552751. The reversal of 2775552749 is 9472555772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1501562500 + 1273990249 = 38750^2 + 35693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2775552749 - 2²⁴ = 2758775533 is a prime.

Together with 2775552751, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2775552749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2775552709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387776374 + 1387776375.

It is an arithmetic number, because the mean of its divisors is an integer number (1387776375).

Almost surely, 2^2775552749 is an apocalyptic number.

It is an amenable number.

2775552749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775552749 is an equidigital number, since it uses as much as digits as its factorization.

2775552749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6174000, while the sum is 53.

The square root of 2775552749 is about 52683.5149643605. The cubic root of 2775552749 is about 1405.3456761861.

The spelling of 2775552749 in words is "two billion, seven hundred seventy-five million, five hundred fifty-two thousand, seven hundred forty-nine".