2765276513 has 2 divisors, whose sum is σ = 2765276514. Its totient is φ = 2765276512.

The previous prime is 2765276497. The next prime is 2765276531. The reversal of 2765276513 is 3156725672.

Together with next prime (2765276531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2732466529 + 32809984 = 52273^2 + 5728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2765276513 - 2⁴ = 2765276497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2765276533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382638256 + 1382638257.

It is an arithmetic number, because the mean of its divisors is an integer number (1382638257).

Almost surely, 2^2765276513 is an apocalyptic number.

It is an amenable number.

2765276513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765276513 is an equidigital number, since it uses as much as digits as its factorization.

2765276513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 44.

The square root of 2765276513 is about 52585.8965217861. The cubic root of 2765276513 is about 1403.6091423760.

The spelling of 2765276513 in words is "two billion, seven hundred sixty-five million, two hundred seventy-six thousand, five hundred thirteen".