55881135188 has 6 divisors (see below), whose sum is σ = 97791986586. Its totient is φ = 27940567592.

The previous prime is 55881135161. The next prime is 55881135223. The reversal of 55881135188 is 88153118855.

It can be written as a sum of positive squares in only one way, i.e., 43857574084 + 12023561104 = 209422^2 + 109652^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985141895 + ... + 6985141902.

It is an arithmetic number, because the mean of its divisors is an integer number (16298664431).

Almost surely, 2^55881135188 is an apocalyptic number.

It is an amenable number.

55881135188 is a deficient number, since it is larger than the sum of its proper divisors (41910851398).

55881135188 is a wasteful number, since it uses less digits than its factorization.

55881135188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13970283801 (or 13970283799 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 53.

The spelling of 55881135188 in words is "fifty-five billion, eight hundred eighty-one million, one hundred thirty-five thousand, one hundred eighty-eight".