5509312779 has 16 divisors (see below), whose sum is σ = 7547813504. Its totient is φ = 3572553600.

The previous prime is 5509312763. The next prime is 5509312841. The reversal of 5509312779 is 9772139055.

5509312779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5509312779 - 2⁴ = 5509312763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5509312709) 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 in 15 ways as a sum of consecutive naturals, for example, 57517 + ... + 119694.

It is an arithmetic number, because the mean of its divisors is an integer number (471738344).

Almost surely, 2^5509312779 is an apocalyptic number.

5509312779 is a deficient number, since it is larger than the sum of its proper divisors (2038500725).

5509312779 is a wasteful number, since it uses less digits than its factorization.

5509312779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177498.

The product of its (nonzero) digits is 595350, while the sum is 48.

The square root of 5509312779 is about 74224.7450585046. The cubic root of 5509312779 is about 1766.1698893279.

The spelling of 5509312779 in words is "five billion, five hundred nine million, three hundred twelve thousand, seven hundred seventy-nine".