556353820 has 96 divisors (see below), whose sum is σ = 1351365120. Its totient is φ = 190275840.

The previous prime is 556353817. The next prime is 556353859. The reversal of 556353820 is 28353655.

It is a self number, because there is not a number n which added to its sum of digits gives 556353820.

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 31 ways as a sum of consecutive naturals, for example, 697662 + ... + 698458.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^556353820 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 556353820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675682560).

556353820 is an abundant number, since it is smaller than the sum of its proper divisors (795011300).

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

556353820 is a wasteful number, since it uses less digits than its factorization.

556353820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 556353820 is about 23587.1537070499. The cubic root of 556353820 is about 822.4642408920.

The spelling of 556353820 in words is "five hundred fifty-six million, three hundred fifty-three thousand, eight hundred twenty".