5585555556 has 240 divisors, whose sum is σ = 17402394240. Its totient is φ = 1528450560.

The previous prime is 5585555531. The next prime is 5585555611. The reversal of 5585555556 is 6555555855.

5585555556 is a `hidden beast` number, since 5 + 5 + 85 + 5 + 5 + 5 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10720576 + ... + 10721096.

It is an arithmetic number, because the mean of its divisors is an integer number (72509976).

Almost surely, 2^5585555556 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 5585555556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8701197120).

5585555556 is an abundant number, since it is smaller than the sum of its proper divisors (11816838684).

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

5585555556 is a wasteful number, since it uses less digits than its factorization.

5585555556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 725 counting only the distinct ones).

The product of its digits is 18750000, while the sum is 54.

The square root of 5585555556 is about 74736.5744197578. The cubic root of 5585555556 is about 1774.2798698560.

The spelling of 5585555556 in words is "five billion, five hundred eighty-five million, five hundred fifty-five thousand, five hundred fifty-six".