556490 has 16 divisors (see below), whose sum is σ = 1092960. Its totient is φ = 202320.

The previous prime is 556487. The next prime is 556513. The reversal of 556490 is 94655.

It is a super-3 number, since 3×556490³ = 517003339573347000, which contains 333 as substring. Note that it is a super-d number also for d = 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 7 ways as a sum of consecutive naturals, for example, 2420 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (68310).

2⁵⁵⁶⁴⁹⁰ is an apocalyptic number.

556490 is a deficient number, since it is larger than the sum of its proper divisors (536470).

556490 is a wasteful number, since it uses less digits than its factorization.

556490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 556490 is about 745.9825735230. The cubic root of 556490 is about 82.2531340903.

The spelling of 556490 in words is "five hundred fifty-six thousand, four hundred ninety".