516556 has 12 divisors (see below), whose sum is σ = 914760. Its totient is φ = 255200.

The previous prime is 516541. The next prime is 516563. The reversal of 516556 is 655615.

It is a super-2 number, since 2×516556² = 533660202272, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (76230).

2⁵¹⁶⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

516556 is a deficient number, since it is larger than the sum of its proper divisors (398204).

516556 is a wasteful number, since it uses less digits than its factorization.

516556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 516556 is about 718.7183036489. The cubic root of 516556 is about 80.2365912840.

It can be divided in two parts, 5 and 16556, that added together give a palindrome (16561).

The spelling of 516556 in words is "five hundred sixteen thousand, five hundred fifty-six".