2755639193 has 4 divisors (see below), whose sum is σ = 2800813668. Its totient is φ = 2710464720.

The previous prime is 2755639171. The next prime is 2755639199. The reversal of 2755639193 is 3919365572.

It is a happy number.

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 720546649 + 2035092544 = 26843^2 + 45112^2 .

It is a cyclic number.

It is not a de Polignac number, because 2755639193 - 2⁸ = 2755638937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2755639199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22587146 + ... + 22587267.

It is an arithmetic number, because the mean of its divisors is an integer number (700203417).

Almost surely, 2^2755639193 is an apocalyptic number.

It is an amenable number.

2755639193 is a deficient number, since it is larger than the sum of its proper divisors (45174475).

2755639193 is an equidigital number, since it uses as much as digits as its factorization.

2755639193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45174474.

The product of its digits is 1530900, while the sum is 50.

The square root of 2755639193 is about 52494.1824681555. The cubic root of 2755639193 is about 1401.9766624253.

The spelling of 2755639193 in words is "two billion, seven hundred fifty-five million, six hundred thirty-nine thousand, one hundred ninety-three".