55555549999998 has 8 divisors (see below), whose sum is σ = 111111100000008. Its totient is φ = 18518516666664.

The previous prime is 55555549999853. The next prime is 55555550000017. The reversal of 55555549999998 is 89999994555555.

It is a happy number.

55555549999998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

55555549999998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4629629166661 + ... + 4629629166672.

It is an arithmetic number, because the mean of its divisors is an integer number (13888887500001).

Almost surely, 2^{55555549999998} is an apocalyptic number.

55555549999998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55555549999998 is a wasteful number, since it uses less digits than its factorization.

55555549999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9259258333338.

The product of its digits is 265720500000, while the sum is 96.

The spelling of 55555549999998 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".