5218227756 has 180 divisors, whose sum is σ = 15617681352. Its totient is φ = 1468720512.

The previous prime is 5218227739. The next prime is 5218227757. The reversal of 5218227756 is 6577228125.

5218227756 is a `hidden beast` number, since 521 + 8 + 2 + 2 + 77 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (5218227757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6309415 + ... + 6310241.

Almost surely, 2^5218227756 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 5218227756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7808840676).

5218227756 is an abundant number, since it is smaller than the sum of its proper divisors (10399453596).

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

5218227756 is a wasteful number, since it uses less digits than its factorization.

5218227756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 912 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 5218227756 is about 72237.3016937925. The cubic root of 5218227756 is about 1734.5001570417.

The spelling of 5218227756 in words is "five billion, two hundred eighteen million, two hundred twenty-seven thousand, seven hundred fifty-six".