2756530345 has 4 divisors (see below), whose sum is σ = 3307836420. Its totient is φ = 2205224272.

The previous prime is 2756530333. The next prime is 2756530363. The reversal of 2756530345 is 5430356572.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1392483856 + 1364046489 = 37316^2 + 36933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756530345 - 2¹⁵ = 2756497577 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2756530298 and 2756530307.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 275653030 + ... + 275653039.

It is an arithmetic number, because the mean of its divisors is an integer number (826959105).

Almost surely, 2^2756530345 is an apocalyptic number.

It is an amenable number.

2756530345 is a deficient number, since it is larger than the sum of its proper divisors (551306075).

2756530345 is an equidigital number, since it uses as much as digits as its factorization.

2756530345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551306074.

The product of its (nonzero) digits is 378000, while the sum is 40.

The square root of 2756530345 is about 52502.6698844925. The cubic root of 2756530345 is about 1402.1277755384.

The spelling of 2756530345 in words is "two billion, seven hundred fifty-six million, five hundred thirty thousand, three hundred forty-five".