55188582521854 has 16 divisors (see below), whose sum is σ = 84141030098160. Its totient is φ = 27141583887360.

The previous prime is 55188582521803. The next prime is 55188582521879. The reversal of 55188582521854 is 45812528588155.

It is a self number, because there is not a number n which added to its sum of digits gives 55188582521854.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7013317 + ... + 12631855.

It is an arithmetic number, because the mean of its divisors is an integer number (5258814381135).

Almost surely, 2^{55188582521854} is an apocalyptic number.

55188582521854 is a deficient number, since it is larger than the sum of its proper divisors (28952447576306).

55188582521854 is a wasteful number, since it uses less digits than its factorization.

55188582521854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699115.

The product of its digits is 204800000, while the sum is 67.

The spelling of 55188582521854 in words is "fifty-five trillion, one hundred eighty-eight billion, five hundred eighty-two million, five hundred twenty-one thousand, eight hundred fifty-four".