556520 has 16 divisors (see below), whose sum is σ = 1252260. Its totient is φ = 222592.

The previous prime is 556519. The next prime is 556537. The reversal of 556520 is 25655.

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 4 = 746^2 + 2^2 .

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, 6917 + ... + 6996.

2⁵⁵⁶⁵²⁰ is an apocalyptic number.

It is an amenable number.

556520 is an abundant number, since it is smaller than the sum of its proper divisors (695740).

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

556520 is a wasteful number, since it uses less digits than its factorization.

556520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924 (or 13920 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 556520 is about 746.0026809603. The cubic root of 556520 is about 82.2546121341.

The spelling of 556520 in words is "five hundred fifty-six thousand, five hundred twenty".