5531444321 has 8 divisors (see below), whose sum is σ = 5957546280. Its totient is φ = 5105428992.

The previous prime is 5531444279. The next prime is 5531444323. The reversal of 5531444321 is 1234441355.

It can be written as a sum of positive squares in 4 ways, for example, as 96805921 + 5434638400 = 9839^2 + 73720^2 .

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 5531444321 - 2¹⁰ = 5531443297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5531444323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181835 + ... + 210063.

It is an arithmetic number, because the mean of its divisors is an integer number (744693285).

Almost surely, 2^5531444321 is an apocalyptic number.

It is an amenable number.

5531444321 is a deficient number, since it is larger than the sum of its proper divisors (426101959).

5531444321 is a wasteful number, since it uses less digits than its factorization.

5531444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43315.

The product of its digits is 28800, while the sum is 32.

The square root of 5531444321 is about 74373.6802975354. The cubic root of 5531444321 is about 1768.5316986700.

Adding to 5531444321 its reverse (1234441355), we get a palindrome (6765885676).

The spelling of 5531444321 in words is "five billion, five hundred thirty-one million, four hundred forty-four thousand, three hundred twenty-one".