556507 has 8 divisors (see below), whose sum is σ = 642816. Its totient is φ = 471912.

The previous prime is 556487. The next prime is 556513. The reversal of 556507 is 705655.

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

It is a de Polignac number, because none of the positive numbers 2^k-556507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556537) 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 in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (80352).

2⁵⁵⁶⁵⁰⁷ is an apocalyptic number.

556507 is a deficient number, since it is larger than the sum of its proper divisors (86309).

556507 is a wasteful number, since it uses less digits than its factorization.

556507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 556507 is about 745.9939678040. The cubic root of 556507 is about 82.2539716550.

The spelling of 556507 in words is "five hundred fifty-six thousand, five hundred seven".