556550720 has 112 divisors (see below), whose sum is σ = 1479791808. Its totient is φ = 197621760.

The previous prime is 556550647. The next prime is 556550723. The reversal of 556550720 is 27055655.

It is not an unprimeable number, because it can be changed into a prime (556550723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149522 + ... + 153198.

Almost surely, 2^556550720 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 556550720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739895904).

556550720 is an abundant number, since it is smaller than the sum of its proper divisors (923241088).

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

556550720 is a wasteful number, since it uses less digits than its factorization.

556550720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 556550720 is about 23591.3272199764. The cubic root of 556550720 is about 822.5612559583.

The spelling of 556550720 in words is "five hundred fifty-six million, five hundred fifty thousand, seven hundred twenty".