556013520 has 240 divisors, whose sum is σ = 1996300800. Its totient is φ = 138378240.

The previous prime is 556013461. The next prime is 556013531. The reversal of 556013520 is 25310655.

556013520 is a `hidden beast` number, since 5 + 5 + 601 + 3 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 646851 + ... + 647709.

It is an arithmetic number, because the mean of its divisors is an integer number (8317920).

Almost surely, 2^556013520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556013520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998150400).

556013520 is an abundant number, since it is smaller than the sum of its proper divisors (1440287280).

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

556013520 is a wasteful number, since it uses less digits than its factorization.

556013520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 556013520 is about 23579.9389312186. The cubic root of 556013520 is about 822.2965168913.

The spelling of 556013520 in words is "five hundred fifty-six million, thirteen thousand, five hundred twenty".