20444244053 has 2 divisors, whose sum is σ = 20444244054. Its totient is φ = 20444244052.

The previous prime is 20444243993. The next prime is 20444244097. The reversal of 20444244053 is 35044244402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19908645604 + 535598449 = 141098^2 + 23143^2 .

It is a cyclic number.

It is not a de Polignac number, because 20444244053 - 2¹⁴ = 20444227669 is a prime.

It is a super-2 number, since 2×20444244053² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20444247053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10222122026 + 10222122027.

It is an arithmetic number, because the mean of its divisors is an integer number (10222122027).

Almost surely, 2^20444244053 is an apocalyptic number.

It is an amenable number.

20444244053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20444244053 is an equidigital number, since it uses as much as digits as its factorization.

20444244053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 20444244053 its reverse (35044244402), we get a palindrome (55488488455).

The spelling of 20444244053 in words is "twenty billion, four hundred forty-four million, two hundred forty-four thousand, fifty-three".