557006 has 4 divisors (see below), whose sum is σ = 835512. Its totient is φ = 278502.

The previous prime is 556999. The next prime is 557017. The reversal of 557006 is 600755.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

557006 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 139250 + ... + 139253.

It is an arithmetic number, because the mean of its divisors is an integer number (208878).

2⁵⁵⁷⁰⁰⁶ is an apocalyptic number.

557006 is a deficient number, since it is larger than the sum of its proper divisors (278506).

557006 is a wasteful number, since it uses less digits than its factorization.

557006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278505.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 557006 is about 746.3283459711. The cubic root of 557006 is about 82.2785490459.

The spelling of 557006 in words is "five hundred fifty-seven thousand, six".