55330258030805 has 4 divisors (see below), whose sum is σ = 66396309636972. Its totient is φ = 44264206424640.

The previous prime is 55330258030793. The next prime is 55330258030891. The reversal of 55330258030805 is 50803085203355.

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 34621997330116 + 20708260700689 = 5884046^2 + 4550633^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55330258030805 is a prime.

It is a super-2 number, since 2×55330258030805² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55330258030805.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5533025803076 + ... + 5533025803085.

It is an arithmetic number, because the mean of its divisors is an integer number (16599077409243).

Almost surely, 2^{55330258030805} is an apocalyptic number.

It is an amenable number.

55330258030805 is a deficient number, since it is larger than the sum of its proper divisors (11066051606167).

55330258030805 is a wasteful number, since it uses less digits than its factorization.

55330258030805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066051606166.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 55330258030805 in words is "fifty-five trillion, three hundred thirty billion, two hundred fifty-eight million, thirty thousand, eight hundred five".