55105380306 has 48 divisors (see below), whose sum is σ = 128744310240. Its totient is φ = 16977263040.

The previous prime is 55105380293. The next prime is 55105380397. The reversal of 55105380306 is 60308350155.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1950940 + ... + 1978983.

It is an arithmetic number, because the mean of its divisors is an integer number (2682173130).

Almost surely, 2^55105380306 is an apocalyptic number.

55105380306 is an abundant number, since it is smaller than the sum of its proper divisors (73638929934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55105380306 is a wasteful number, since it uses less digits than its factorization.

55105380306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929991 (or 3929988 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 55105380306 in words is "fifty-five billion, one hundred five million, three hundred eighty thousand, three hundred six".