5581302173 has 4 divisors (see below), whose sum is σ = 5583688668. Its totient is φ = 5578915680.

The previous prime is 5581302143. The next prime is 5581302179. The reversal of 5581302173 is 3712031855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2090501284 + 3490800889 = 45722^2 + 59083^2 .

It is a cyclic number.

It is not a de Polignac number, because 5581302173 - 2²⁰ = 5580253597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581302179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189736 + ... + 1194417.

It is an arithmetic number, because the mean of its divisors is an integer number (1395922167).

Almost surely, 2^5581302173 is an apocalyptic number.

It is an amenable number.

5581302173 is a deficient number, since it is larger than the sum of its proper divisors (2386495).

5581302173 is a wasteful number, since it uses less digits than its factorization.

5581302173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386494.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 5581302173 is about 74708.1131671788. The cubic root of 5581302173 is about 1773.8293859746.

The spelling of 5581302173 in words is "five billion, five hundred eighty-one million, three hundred two thousand, one hundred seventy-three".