2750280065 has 16 divisors (see below), whose sum is σ = 3563768208. Its totient is φ = 2025513216.

The previous prime is 2750280061. The next prime is 2750280073. The reversal of 2750280065 is 5600820572.

It can be written as a sum of positive squares in 8 ways, for example, as 183033841 + 2567246224 = 13529^2 + 50668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750280065 - 2² = 2750280061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2750280061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32474 + ... + 80963.

It is an arithmetic number, because the mean of its divisors is an integer number (222735513).

Almost surely, 2^2750280065 is an apocalyptic number.

It is an amenable number.

2750280065 is a deficient number, since it is larger than the sum of its proper divisors (813488143).

2750280065 is a wasteful number, since it uses less digits than its factorization.

2750280065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113828.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 2750280065 is about 52443.1126555242. The cubic root of 2750280065 is about 1401.0672245099.

The spelling of 2750280065 in words is "two billion, seven hundred fifty million, two hundred eighty thousand, sixty-five".