5531231144 has 16 divisors (see below), whose sum is σ = 10517130720. Its totient is φ = 2726662960.

The previous prime is 5531231089. The next prime is 5531231149. The reversal of 5531231144 is 4411321355.

It is not an unprimeable number, because it can be changed into a prime (5531231149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4868474 + ... + 4869609.

It is an arithmetic number, because the mean of its divisors is an integer number (657320670).

Almost surely, 2^5531231144 is an apocalyptic number.

It is an amenable number.

5531231144 is a deficient number, since it is larger than the sum of its proper divisors (4985899576).

5531231144 is a wasteful number, since it uses less digits than its factorization.

5531231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9738160 (or 9738156 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 5531231144 is about 74372.2471356083. The cubic root of 5531231144 is about 1768.5089791593.

Adding to 5531231144 its reverse (4411321355), we get a palindrome (9942552499).

The spelling of 5531231144 in words is "five billion, five hundred thirty-one million, two hundred thirty-one thousand, one hundred forty-four".