557530985 has 16 divisors (see below), whose sum is σ = 749587392. Its totient is φ = 394516800.

The previous prime is 557530969. The next prime is 557530999. The reversal of 557530985 is 589035755.

It is not a de Polignac number, because 557530985 - 2⁴ = 557530969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134951 + ... + 139020.

It is an arithmetic number, because the mean of its divisors is an integer number (46849212).

Almost surely, 2^557530985 is an apocalyptic number.

557530985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

557530985 is a deficient number, since it is larger than the sum of its proper divisors (192056407).

557530985 is a wasteful number, since it uses less digits than its factorization.

557530985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274024.

The product of its (nonzero) digits is 945000, while the sum is 47.

The square root of 557530985 is about 23612.0940409782. The cubic root of 557530985 is about 823.0439044348.

The spelling of 557530985 in words is "five hundred fifty-seven million, five hundred thirty thousand, nine hundred eighty-five".