550544143 has 2 divisors, whose sum is σ = 550544144. Its totient is φ = 550544142.

The previous prime is 550544131. The next prime is 550544191. The reversal of 550544143 is 341445055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550544143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550544543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275272071 + 275272072.

It is an arithmetic number, because the mean of its divisors is an integer number (275272072).

Almost surely, 2^550544143 is an apocalyptic number.

550544143 is a deficient number, since it is larger than the sum of its proper divisors (1).

550544143 is an equidigital number, since it uses as much as digits as its factorization.

550544143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 550544143 is about 23463.6770988692. The cubic root of 550544143 is about 819.5913802904.

Adding to 550544143 its reverse (341445055), we get a palindrome (891989198).

The spelling of 550544143 in words is "five hundred fifty million, five hundred forty-four thousand, one hundred forty-three".