5244221889 has 27 divisors (see below), whose sum is σ = 7682874979. Its totient is φ = 3447049200.

The previous prime is 5244221837. The next prime is 5244221909. The reversal of 5244221889 is 9881224425.

The square root of 5244221889 is 72417.

It is a perfect power (a square), and thus also a powerful number.

5244221889 is a `hidden beast` number, since 524 + 42 + 2 + 1 + 8 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5038586289 + 205635600 = 70983^2 + 14340^2 .

It is not a de Polignac number, because 5244221889 - 2¹³ = 5244213697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5244220889) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21942232 + ... + 21942470.

Almost surely, 2^5244221889 is an apocalyptic number.

5244221889 is the 72417-th square number.

5244221889 is the 36209-th centered octagonal number.

It is an amenable number.

5244221889 is a deficient number, since it is larger than the sum of its proper divisors (2438653090).

5244221889 is an equidigital number, since it uses as much as digits as its factorization.

5244221889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 343 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The cubic root of 5244221889 is about 1737.3754735315.

The spelling of 5244221889 in words is "five billion, two hundred forty-four million, two hundred twenty-one thousand, eight hundred eighty-nine".