55000000170 has 96 divisors (see below), whose sum is σ = 149593813200. Its totient is φ = 14001748992.

The previous prime is 55000000163. The next prime is 55000000171. The reversal of 55000000170 is 7100000055.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11713949361 + 43286050809 = 108231^2 + 208053^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (55000000171) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 113904 + ... + 350676.

Almost surely, 2^55000000170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000000170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74796906600).

55000000170 is an abundant number, since it is smaller than the sum of its proper divisors (94593813030).

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

55000000170 is a wasteful number, since it uses less digits than its factorization.

55000000170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236904 (or 236901 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The spelling of 55000000170 in words is "fifty-five billion, one hundred seventy", and thus it is an aban number.