557222143 has 2 divisors, whose sum is σ = 557222144. Its totient is φ = 557222142.

The previous prime is 557222131. The next prime is 557222161. The reversal of 557222143 is 341222755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557222143 - 2⁵ = 557222111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557222123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278611071 + 278611072.

It is an arithmetic number, because the mean of its divisors is an integer number (278611072).

Almost surely, 2^557222143 is an apocalyptic number.

557222143 is a deficient number, since it is larger than the sum of its proper divisors (1).

557222143 is an equidigital number, since it uses as much as digits as its factorization.

557222143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 31.

The square root of 557222143 is about 23605.5532237650. The cubic root of 557222143 is about 822.8919024338.

Adding to 557222143 its reverse (341222755), we get a palindrome (898444898).

The spelling of 557222143 in words is "five hundred fifty-seven million, two hundred twenty-two thousand, one hundred forty-three".