2774275561 has 2 divisors, whose sum is σ = 2774275562. Its totient is φ = 2774275560.

The previous prime is 2774275541. The next prime is 2774275601. The reversal of 2774275561 is 1655724772.

2774275561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1668314025 + 1105961536 = 40845^2 + 33256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2774275561 - 2¹³ = 2774267369 is a prime.

It is a super-3 number, since 3×2774275561³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2774275541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387137780 + 1387137781.

It is an arithmetic number, because the mean of its divisors is an integer number (1387137781).

Almost surely, 2^2774275561 is an apocalyptic number.

It is an amenable number.

2774275561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2774275561 is an equidigital number, since it uses as much as digits as its factorization.

2774275561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 823200, while the sum is 46.

The square root of 2774275561 is about 52671.3922447471. The cubic root of 2774275561 is about 1405.1300835725.

The spelling of 2774275561 in words is "two billion, seven hundred seventy-four million, two hundred seventy-five thousand, five hundred sixty-one".