6550043617 has 16 divisors (see below), whose sum is σ = 7369422480. Its totient is φ = 5779872000.

The previous prime is 6550043597. The next prime is 6550043653. The reversal of 6550043617 is 7163400556.

It can be written as a sum of positive squares in 8 ways, for example, as 1199998881 + 5350044736 = 34641^2 + 73144^2 .

It is a cyclic number.

It is not a de Polignac number, because 6550043617 - 2³¹ = 4402559969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6550043417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47934 + ... + 124087.

It is an arithmetic number, because the mean of its divisors is an integer number (460588905).

Almost surely, 2^6550043617 is an apocalyptic number.

It is an amenable number.

6550043617 is a deficient number, since it is larger than the sum of its proper divisors (819378863).

6550043617 is a wasteful number, since it uses less digits than its factorization.

6550043617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172164.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 6550043617 is about 80932.3397474705. The cubic root of 6550043617 is about 1871.0327844688.

The spelling of 6550043617 in words is "six billion, five hundred fifty million, forty-three thousand, six hundred seventeen".