55243143 has 6 divisors (see below), whose sum is σ = 79795664. Its totient is φ = 36828756.

The previous prime is 55243117. The next prime is 55243151. The reversal of 55243143 is 34134255.

It is not a de Polignac number, because 55243143 - 2¹⁶ = 55177607 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 (55243163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3069055 + ... + 3069072.

Almost surely, 2^55243143 is an apocalyptic number.

55243143 is a deficient number, since it is larger than the sum of its proper divisors (24552521).

55243143 is a wasteful number, since it uses less digits than its factorization.

55243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138133 (or 6138130 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 55243143 is about 7432.5731076122. The cubic root of 55243143 is about 380.8548230650.

Adding to 55243143 its reverse (34134255), we get a palindrome (89377398).

The spelling of 55243143 in words is "fifty-five million, two hundred forty-three thousand, one hundred forty-three".