55239319109 has 16 divisors (see below), whose sum is σ = 60362104320. Its totient is φ = 50242187520.

The previous prime is 55239319097. The next prime is 55239319181. The reversal of 55239319109 is 90191393255.

It is a cyclic number.

It is not a de Polignac number, because 55239319109 - 2⁸ = 55239318853 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 (55239319309) 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 15 ways as a sum of consecutive naturals, for example, 1623332 + ... + 1657010.

It is an arithmetic number, because the mean of its divisors is an integer number (3772631520).

Almost surely, 2^55239319109 is an apocalyptic number.

It is an amenable number.

55239319109 is a deficient number, since it is larger than the sum of its proper divisors (5122785211).

55239319109 is a wasteful number, since it uses less digits than its factorization.

55239319109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35540.

The product of its (nonzero) digits is 328050, while the sum is 47.

The spelling of 55239319109 in words is "fifty-five billion, two hundred thirty-nine million, three hundred nineteen thousand, one hundred nine".