2765255143 has 4 divisors (see below), whose sum is σ = 3160291600. Its totient is φ = 2370218688.

The previous prime is 2765255131. The next prime is 2765255159. The reversal of 2765255143 is 3415525672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2765255143 - 2⁹ = 2765254631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2765255096 and 2765255105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765255743) 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 3 ways as a sum of consecutive naturals, for example, 197518218 + ... + 197518231.

It is an arithmetic number, because the mean of its divisors is an integer number (790072900).

Almost surely, 2^2765255143 is an apocalyptic number.

2765255143 is a deficient number, since it is larger than the sum of its proper divisors (395036457).

2765255143 is an equidigital number, since it uses as much as digits as its factorization.

2765255143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395036456.

The product of its digits is 252000, while the sum is 40.

The square root of 2765255143 is about 52585.6933300304. The cubic root of 2765255143 is about 1403.6055266792.

The spelling of 2765255143 in words is "two billion, seven hundred sixty-five million, two hundred fifty-five thousand, one hundred forty-three".