5511143 has 4 divisors (see below), whose sum is σ = 6012168. Its totient is φ = 5010120.

The previous prime is 5511137. The next prime is 5511151. The reversal of 5511143 is 3411155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5511143 - 2¹⁰ = 5510119 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 (5511133) 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, 250496 + ... + 250517.

It is an arithmetic number, because the mean of its divisors is an integer number (1503042).

Almost surely, 2^5511143 is an apocalyptic number.

5511143 is a deficient number, since it is larger than the sum of its proper divisors (501025).

5511143 is a wasteful number, since it uses less digits than its factorization.

5511143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501024.

The product of its digits is 300, while the sum is 20.

The square root of 5511143 is about 2347.5823734216. The cubic root of 5511143 is about 176.6365444470.

Adding to 5511143 its reverse (3411155), we get a palindrome (8922298).

The spelling of 5511143 in words is "five million, five hundred eleven thousand, one hundred forty-three".