5506631321 has 4 divisors (see below), whose sum is σ = 5640939444. Its totient is φ = 5372323200.

The previous prime is 5506631269. The next prime is 5506631323. The reversal of 5506631321 is 1231366055.

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 3196771600 + 2309859721 = 56540^2 + 48061^2 .

It is a cyclic number.

It is not a de Polignac number, because 5506631321 - 2²⁶ = 5439522457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5506631323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67154000 + ... + 67154081.

It is an arithmetic number, because the mean of its divisors is an integer number (1410234861).

Almost surely, 2^5506631321 is an apocalyptic number.

It is an amenable number.

5506631321 is a deficient number, since it is larger than the sum of its proper divisors (134308123).

5506631321 is a wasteful number, since it uses less digits than its factorization.

5506631321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134308122.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 5506631321 is about 74206.6797599785. The cubic root of 5506631321 is about 1765.8833031346.

Adding to 5506631321 its reverse (1231366055), we get a palindrome (6737997376).

The spelling of 5506631321 in words is "five billion, five hundred six million, six hundred thirty-one thousand, three hundred twenty-one".