5500531121 has 8 divisors (see below), whose sum is σ = 5761514880. Its totient is φ = 5241366592.

The previous prime is 5500531117. The next prime is 5500531139. The reversal of 5500531121 is 1211350055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5500531121 - 2² = 5500531117 is a prime.

It is a super-2 number, since 2×5500531121² = 60511685226179033282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5500536121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448616 + ... + 460713.

It is an arithmetic number, because the mean of its divisors is an integer number (720189360).

Almost surely, 2^5500531121 is an apocalyptic number.

It is an amenable number.

5500531121 is a deficient number, since it is larger than the sum of its proper divisors (260983759).

5500531121 is a wasteful number, since it uses less digits than its factorization.

5500531121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909615.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 5500531121 is about 74165.5656015647. The cubic root of 5500531121 is about 1765.2309852929.

Adding to 5500531121 its reverse (1211350055), we get a palindrome (6711881176).

The spelling of 5500531121 in words is "five billion, five hundred million, five hundred thirty-one thousand, one hundred twenty-one".