558055985 has 16 divisors (see below), whose sum is σ = 677119872. Its totient is φ = 441504000.

The previous prime is 558055963. The next prime is 558055987. The reversal of 558055985 is 589550855.

It is not a de Polignac number, because 558055985 - 2¹⁰ = 558054961 is a prime.

It is a super-2 number, since 2×558055985² = 622852964788640450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (558055987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180422 + ... + 183488.

It is an arithmetic number, because the mean of its divisors is an integer number (42319992).

Almost surely, 2^558055985 is an apocalyptic number.

It is an amenable number.

558055985 is a deficient number, since it is larger than the sum of its proper divisors (119063887).

558055985 is a wasteful number, since it uses less digits than its factorization.

558055985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464.

The product of its (nonzero) digits is 1800000, while the sum is 50.

The square root of 558055985 is about 23623.2086093316. The cubic root of 558055985 is about 823.3021636190.

The spelling of 558055985 in words is "five hundred fifty-eight million, fifty-five thousand, nine hundred eighty-five".