5531984909 has 16 divisors (see below), whose sum is σ = 6667712640. Its totient is φ = 4527452160.

The previous prime is 5531984879. The next prime is 5531984917. The reversal of 5531984909 is 9094891355.

It is a happy number.

It is not a de Polignac number, because 5531984909 - 2²⁴ = 5515207693 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 (5531984009) 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, 638804 + ... + 647405.

It is an arithmetic number, because the mean of its divisors is an integer number (416732040).

Almost surely, 2^5531984909 is an apocalyptic number.

It is an amenable number.

5531984909 is a deficient number, since it is larger than the sum of its proper divisors (1135727731).

5531984909 is a wasteful number, since it uses less digits than its factorization.

5531984909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286260.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The square root of 5531984909 is about 74377.3144782735. The cubic root of 5531984909 is about 1768.5893096552.

The spelling of 5531984909 in words is "five billion, five hundred thirty-one million, nine hundred eighty-four thousand, nine hundred nine".