556494 has 16 divisors (see below), whose sum is σ = 1122768. Its totient is φ = 183872.

The previous prime is 556487. The next prime is 556513. The reversal of 556494 is 494655.

It is a congruent number.

It is an unprimeable number.

556494 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484 + ... + 1160.

It is an arithmetic number, because the mean of its divisors is an integer number (70173).

2⁵⁵⁶⁴⁹⁴ is an apocalyptic number.

556494 is an abundant number, since it is smaller than the sum of its proper divisors (566274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556494 is a wasteful number, since it uses less digits than its factorization.

556494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its digits is 21600, while the sum is 33.

The square root of 556494 is about 745.9852545460. The cubic root of 556494 is about 82.2533311659.

The spelling of 556494 in words is "five hundred fifty-six thousand, four hundred ninety-four".