556213 has 8 divisors (see below), whose sum is σ = 640640. Its totient is φ = 473040.

The previous prime is 556211. The next prime is 556219. The reversal of 556213 is 312655.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 556213 - 2¹ = 556211 is a prime.

556213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1048 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (80080).

2⁵⁵⁶²¹³ is an apocalyptic number.

It is an amenable number.

556213 is a deficient number, since it is larger than the sum of its proper divisors (84427).

556213 is a wasteful number, since it uses less digits than its factorization.

556213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 900, while the sum is 22.

The square root of 556213 is about 745.7968892400. The cubic root of 556213 is about 82.2394843095.

Adding to 556213 its reverse (312655), we get a palindrome (868868).

The spelling of 556213 in words is "five hundred fifty-six thousand, two hundred thirteen".