5221806819 has 8 divisors (see below), whose sum is σ = 7371962640. Its totient is φ = 3276427776.

The previous prime is 5221806773. The next prime is 5221806839. The reversal of 5221806819 is 9186081225.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5221806819 - 2¹⁷ = 5221675747 is a prime.

It is a super-3 number, since 3×5221806819³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5221806839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51194134 + ... + 51194235.

It is an arithmetic number, because the mean of its divisors is an integer number (921495330).

Almost surely, 2^5221806819 is an apocalyptic number.

5221806819 is a deficient number, since it is larger than the sum of its proper divisors (2150155821).

5221806819 is a wasteful number, since it uses less digits than its factorization.

5221806819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102388389.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 5221806819 is about 72262.0704034973. The cubic root of 5221806819 is about 1734.8966177357.

The spelling of 5221806819 in words is "five billion, two hundred twenty-one million, eight hundred six thousand, eight hundred nineteen".