5509143 has 12 divisors (see below), whose sum is σ = 7986888. Its totient is φ = 3659280.

The previous prime is 5509111. The next prime is 5509151. The reversal of 5509143 is 3419055.

It is not a de Polignac number, because 5509143 - 2⁵ = 5509111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5509643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1888 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (665574).

Almost surely, 2^5509143 is an apocalyptic number.

5509143 is a deficient number, since it is larger than the sum of its proper divisors (2477745).

5509143 is a wasteful number, since it uses less digits than its factorization.

5509143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 5509143 is about 2347.1563646251. The cubic root of 5509143 is about 176.6151746615.

It can be divided in two parts, 5509 and 143, that multiplied together give a palindrome (787787).

The spelling of 5509143 in words is "five million, five hundred nine thousand, one hundred forty-three".