20244552089 has 2 divisors, whose sum is σ = 20244552090. Its totient is φ = 20244552088.

The previous prime is 20244552023. The next prime is 20244552143. The reversal of 20244552089 is 98025544202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17498792089 + 2745760000 = 132283^2 + 52400^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244552089 - 2²⁰ = 20243503513 is a prime.

It is not a weakly prime, because it can be changed into another prime (20244552589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122276044 + 10122276045.

It is an arithmetic number, because the mean of its divisors is an integer number (10122276045).

Almost surely, 2^20244552089 is an apocalyptic number.

It is an amenable number.

20244552089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244552089 is an equidigital number, since it uses as much as digits as its factorization.

20244552089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 20244552089 in words is "twenty billion, two hundred forty-four million, five hundred fifty-two thousand, eighty-nine".