20244050257 has 2 divisors, whose sum is σ = 20244050258. Its totient is φ = 20244050256.

The previous prime is 20244050237. The next prime is 20244050269. The reversal of 20244050257 is 75205044202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19797615616 + 446434641 = 140704^2 + 21129^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244050257 - 2¹⁵ = 20244017489 is a prime.

It is not a weakly prime, because it can be changed into another prime (20244050207) 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 as a sum of consecutive naturals, namely, 10122025128 + 10122025129.

It is an arithmetic number, because the mean of its divisors is an integer number (10122025129).

Almost surely, 2^20244050257 is an apocalyptic number.

It is an amenable number.

20244050257 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244050257 is an equidigital number, since it uses as much as digits as its factorization.

20244050257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 31.

Adding to 20244050257 its reverse (75205044202), we get a palindrome (95449094459).

The spelling of 20244050257 in words is "twenty billion, two hundred forty-four million, fifty thousand, two hundred fifty-seven".