53543143 has 2 divisors, whose sum is σ = 53543144. Its totient is φ = 53543142.

The previous prime is 53543137. The next prime is 53543153. The reversal of 53543143 is 34134535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53543143 - 2⁵ = 53543111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53543153) 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, 26771571 + 26771572.

It is an arithmetic number, because the mean of its divisors is an integer number (26771572).

Almost surely, 2^53543143 is an apocalyptic number.

53543143 is a deficient number, since it is larger than the sum of its proper divisors (1).

53543143 is an equidigital number, since it uses as much as digits as its factorization.

53543143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 28.

The square root of 53543143 is about 7317.3180196025. The cubic root of 53543143 is about 376.9073618444.

Adding to 53543143 its reverse (34134535), we get a palindrome (87677678).

The spelling of 53543143 in words is "fifty-three million, five hundred forty-three thousand, one hundred forty-three".