5543243243 has 4 divisors (see below), whose sum is σ = 5544481488. Its totient is φ = 5542005000.

The previous prime is 5543243221. The next prime is 5543243257. The reversal of 5543243243 is 3423423455.

It is a happy number.

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 5543243243 - 2¹⁶ = 5543177707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5543243213) 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 3 ways as a sum of consecutive naturals, for example, 612383 + ... + 621368.

It is an arithmetic number, because the mean of its divisors is an integer number (1386120372).

Almost surely, 2^5543243243 is an apocalyptic number.

5543243243 is a deficient number, since it is larger than the sum of its proper divisors (1238245).

5543243243 is a wasteful number, since it uses less digits than its factorization.

5543243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238244.

The product of its digits is 172800, while the sum is 35.

The square root of 5543243243 is about 74452.9599344445. The cubic root of 5543243243 is about 1769.7882691183.

Adding to 5543243243 its reverse (3423423455), we get a palindrome (8966666698).

The spelling of 5543243243 in words is "five billion, five hundred forty-three million, two hundred forty-three thousand, two hundred forty-three".