55889445139 has 8 divisors (see below), whose sum is σ = 61358651568. Its totient is φ = 50484963360.

The previous prime is 55889445133. The next prime is 55889445173. The reversal of 55889445139 is 93154498855.

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

It is a cyclic number.

It is not a de Polignac number, because 55889445139 - 2⁵ = 55889445107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55889445133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16179352 + ... + 16182805.

It is an arithmetic number, because the mean of its divisors is an integer number (7669831446).

Almost surely, 2^55889445139 is an apocalyptic number.

55889445139 is a deficient number, since it is larger than the sum of its proper divisors (5469206429).

55889445139 is a wasteful number, since it uses less digits than its factorization.

55889445139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32362325.

The product of its digits is 31104000, while the sum is 61.

The spelling of 55889445139 in words is "fifty-five billion, eight hundred eighty-nine million, four hundred forty-five thousand, one hundred thirty-nine".