558721249 has 2 divisors, whose sum is σ = 558721250. Its totient is φ = 558721248.

The previous prime is 558721237. The next prime is 558721253. The reversal of 558721249 is 942127855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527529024 + 31192225 = 22968^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 558721249 - 2¹¹ = 558719201 is a prime.

It is a super-3 number, since 3×558721249³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (558722249) 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, 279360624 + 279360625.

It is an arithmetic number, because the mean of its divisors is an integer number (279360625).

Almost surely, 2^558721249 is an apocalyptic number.

It is an amenable number.

558721249 is a deficient number, since it is larger than the sum of its proper divisors (1).

558721249 is an equidigital number, since it uses as much as digits as its factorization.

558721249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 43.

The square root of 558721249 is about 23637.2851444492. The cubic root of 558721249 is about 823.6291892249.

It can be divided in two parts, 55872 and 1249, that added together give a square (57121 = 239²).

The spelling of 558721249 in words is "five hundred fifty-eight million, seven hundred twenty-one thousand, two hundred forty-nine".