2765252881 has 2 divisors, whose sum is σ = 2765252882. Its totient is φ = 2765252880.

The previous prime is 2765252821. The next prime is 2765252939. The reversal of 2765252881 is 1882525672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1794369600 + 970883281 = 42360^2 + 31159^2 .

It is a cyclic number.

It is not a de Polignac number, because 2765252881 - 2⁷ = 2765252753 is a prime.

It is a super-2 number, since 2×2765252881² = 15293246991757600322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2765252821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382626440 + 1382626441.

It is an arithmetic number, because the mean of its divisors is an integer number (1382626441).

Almost surely, 2^2765252881 is an apocalyptic number.

It is an amenable number.

2765252881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765252881 is an equidigital number, since it uses as much as digits as its factorization.

2765252881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 46.

The square root of 2765252881 is about 52585.6718222749. The cubic root of 2765252881 is about 1403.6051439591.

The spelling of 2765252881 in words is "two billion, seven hundred sixty-five million, two hundred fifty-two thousand, eight hundred eighty-one".