557999986 has 8 divisors (see below), whose sum is σ = 849492720. Its totient is φ = 274835748.

The previous prime is 557999957. The next prime is 558000011. The reversal of 557999986 is 689999755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×557999986² = 622727968752000392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2081956 + ... + 2082223.

It is an arithmetic number, because the mean of its divisors is an integer number (106186590).

Almost surely, 2^557999986 is an apocalyptic number.

557999986 is a deficient number, since it is larger than the sum of its proper divisors (291492734).

557999986 is a wasteful number, since it uses less digits than its factorization.

557999986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164248.

The product of its digits is 55112400, while the sum is 67.

The square root of 557999986 is about 23622.0233257018. The cubic root of 557999986 is about 823.2746241837.

The spelling of 557999986 in words is "five hundred fifty-seven million, nine hundred ninety-nine thousand, nine hundred eighty-six".