55543143 has 16 divisors (see below), whose sum is σ = 77400576. Its totient is φ = 35394240.

The previous prime is 55543141. The next prime is 55543153. The reversal of 55543143 is 34134555.

It is not a de Polignac number, because 55543143 - 2¹ = 55543141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55543143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55543141) 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, 1483 + ... + 10643.

It is an arithmetic number, because the mean of its divisors is an integer number (4837536).

Almost surely, 2^55543143 is an apocalyptic number.

55543143 is a deficient number, since it is larger than the sum of its proper divisors (21857433).

55543143 is a wasteful number, since it uses less digits than its factorization.

55543143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254.

The product of its digits is 18000, while the sum is 30.

The square root of 55543143 is about 7452.7272189448. The cubic root of 55543143 is about 381.5429944095.

Adding to 55543143 its reverse (34134555), we get a palindrome (89677698).

The spelling of 55543143 in words is "fifty-five million, five hundred forty-three thousand, one hundred forty-three".