55050143 has 2 divisors, whose sum is σ = 55050144. Its totient is φ = 55050142.

The previous prime is 55050139. The next prime is 55050209. The reversal of 55050143 is 34105055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55050143 - 2² = 55050139 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55050133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525071 + 27525072.

It is an arithmetic number, because the mean of its divisors is an integer number (27525072).

Almost surely, 2^55050143 is an apocalyptic number.

55050143 is a deficient number, since it is larger than the sum of its proper divisors (1).

55050143 is an equidigital number, since it uses as much as digits as its factorization.

55050143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55050143 is about 7419.5783572923. The cubic root of 55050143 is about 380.4107815452.

Adding to 55050143 its reverse (34105055), we get a palindrome (89155198).

The spelling of 55050143 in words is "fifty-five million, fifty thousand, one hundred forty-three".