5221214856 has 320 divisors, whose sum is σ = 17316096000. Its totient is φ = 1448979840.

The previous prime is 5221214851. The next prime is 5221214857. The reversal of 5221214856 is 6584121225.

5221214856 is a `hidden beast` number, since 52 + 2 + 121 + 485 + 6 = 666.

It is a super-2 number, since 2×5221214856² = 54522169145030201472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5221214856.

It is not an unprimeable number, because it can be changed into a prime (5221214851) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41111865 + ... + 41111991.

It is an arithmetic number, because the mean of its divisors is an integer number (54112800).

Almost surely, 2^5221214856 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 5221214856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8658048000).

5221214856 is an abundant number, since it is smaller than the sum of its proper divisors (12094881144).

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

5221214856 is a wasteful number, since it uses less digits than its factorization.

5221214856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 156 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 5221214856 is about 72257.9743419368. The cubic root of 5221214856 is about 1734.8310571962.

The spelling of 5221214856 in words is "five billion, two hundred twenty-one million, two hundred fourteen thousand, eight hundred fifty-six".