179989055 has 8 divisors (see below), whose sum is σ = 216083472. Its totient is φ = 143926848.

The previous prime is 179989037. The next prime is 179989063. The reversal of 179989055 is 550989971.

It is a Cunningham number, because it is equal to 13416²-1.

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 179989055 - 2¹⁰ = 179988031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 179988988 and 179989006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6707 + ... + 20123.

It is an arithmetic number, because the mean of its divisors is an integer number (27010434).

Almost surely, 2^179989055 is an apocalyptic number.

179989055 is a deficient number, since it is larger than the sum of its proper divisors (36094417).

179989055 is a wasteful number, since it uses less digits than its factorization.

179989055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16105.

The product of its (nonzero) digits is 1020600, while the sum is 53.

The square root of 179989055 is about 13415.9999627311. Note that the first 4 decimals coincide. The cubic root of 179989055 is about 564.6101730529.

The spelling of 179989055 in words is "one hundred seventy-nine million, nine hundred eighty-nine thousand, fifty-five".