2757800005 has 4 divisors (see below), whose sum is σ = 3309360012. Its totient is φ = 2206240000.

The previous prime is 2757799997. The next prime is 2757800009. The reversal of 2757800005 is 5000087572.

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 1349974564 + 1407825441 = 36742^2 + 37521^2 .

It is not a de Polignac number, because 2757800005 - 2³ = 2757799997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2757800009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275779996 + ... + 275780005.

It is an arithmetic number, because the mean of its divisors is an integer number (827340003).

Almost surely, 2^2757800005 is an apocalyptic number.

It is an amenable number.

2757800005 is a deficient number, since it is larger than the sum of its proper divisors (551560007).

2757800005 is an equidigital number, since it uses as much as digits as its factorization.

2757800005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551560006.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 2757800005 is about 52514.7598775811. The cubic root of 2757800005 is about 1402.3430162062.

Adding to 2757800005 its reverse (5000087572), we get a palindrome (7757887577).

The spelling of 2757800005 in words is "two billion, seven hundred fifty-seven million, eight hundred thousand, five".