55558443384 has 24 divisors (see below), whose sum is σ = 150470784360. Its totient is φ = 18519481104.

The previous prime is 55558443349. The next prime is 55558443407. The reversal of 55558443384 is 48334485555.

55558443384 is a `hidden beast` number, since 5 + 5 + 55 + 84 + 433 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 55558443384.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 385822452 + ... + 385822595.

It is an arithmetic number, because the mean of its divisors is an integer number (6269616015).

Almost surely, 2^55558443384 is an apocalyptic number.

It is an amenable number.

55558443384 is an abundant number, since it is smaller than the sum of its proper divisors (94912340976).

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

55558443384 is a wasteful number, since it uses less digits than its factorization.

55558443384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771645059 (or 771645052 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 54.

The spelling of 55558443384 in words is "fifty-five billion, five hundred fifty-eight million, four hundred forty-three thousand, three hundred eighty-four".