5621226217 has 4 divisors (see below), whose sum is σ = 5635677060. Its totient is φ = 5606775376.

The previous prime is 5621226199. The next prime is 5621226251. The reversal of 5621226217 is 7126221265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2095716841 + 3525509376 = 45779^2 + 59376^2 .

It is a cyclic number.

It is not a de Polignac number, because 5621226217 - 2¹⁹ = 5620701929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621226287) 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 3 ways as a sum of consecutive naturals, for example, 7224838 + ... + 7225615.

It is an arithmetic number, because the mean of its divisors is an integer number (1408919265).

Almost surely, 2^5621226217 is an apocalyptic number.

It is an amenable number.

5621226217 is a deficient number, since it is larger than the sum of its proper divisors (14450843).

5621226217 is a wasteful number, since it uses less digits than its factorization.

5621226217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14450842.

The product of its digits is 20160, while the sum is 34.

The square root of 5621226217 is about 74974.8372255652. The cubic root of 5621226217 is about 1778.0488464258.

The spelling of 5621226217 in words is "five billion, six hundred twenty-one million, two hundred twenty-six thousand, two hundred seventeen".