5543243 has 2 divisors, whose sum is σ = 5543244. Its totient is φ = 5543242.

The previous prime is 5543221. The next prime is 5543249. The reversal of 5543243 is 3423455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5543243 - 2²² = 1348939 is a prime.

It is equal to p₃₈₃₅₆₁ and since 5543243 and 383561 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5543249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2771621 + 2771622.

It is an arithmetic number, because the mean of its divisors is an integer number (2771622).

Almost surely, 2^5543243 is an apocalyptic number.

5543243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5543243 is an equidigital number, since it uses as much as digits as its factorization.

5543243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 26.

The square root of 5543243 is about 2354.4092677358. The cubic root of 5543243 is about 176.9788243257.

Adding to 5543243 its reverse (3423455), we get a palindrome (8966698).

The spelling of 5543243 in words is "five million, five hundred forty-three thousand, two hundred forty-three".