558985421 has 2 divisors, whose sum is σ = 558985422. Its totient is φ = 558985420.

The previous prime is 558985417. The next prime is 558985433. The reversal of 558985421 is 124589855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441588196 + 117397225 = 21014^2 + 10835^2 .

It is a cyclic number.

It is not a de Polignac number, because 558985421 - 2² = 558985417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (558985451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279492710 + 279492711.

It is an arithmetic number, because the mean of its divisors is an integer number (279492711).

Almost surely, 2^558985421 is an apocalyptic number.

It is an amenable number.

558985421 is a deficient number, since it is larger than the sum of its proper divisors (1).

558985421 is an equidigital number, since it uses as much as digits as its factorization.

558985421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 47.

The square root of 558985421 is about 23642.8725200641. The cubic root of 558985421 is about 823.7589769547.

The spelling of 558985421 in words is "five hundred fifty-eight million, nine hundred eighty-five thousand, four hundred twenty-one".