20605733053 has 2 divisors, whose sum is σ = 20605733054. Its totient is φ = 20605733052.

The previous prime is 20605733039. The next prime is 20605733081. The reversal of 20605733053 is 35033750602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18035952804 + 2569780249 = 134298^2 + 50693^2 .

It is a cyclic number.

It is not a de Polignac number, because 20605733053 - 2⁵ = 20605733021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20605733023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10302866526 + 10302866527.

It is an arithmetic number, because the mean of its divisors is an integer number (10302866527).

Almost surely, 2^20605733053 is an apocalyptic number.

It is an amenable number.

20605733053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20605733053 is an equidigital number, since it uses as much as digits as its factorization.

20605733053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 34.

The spelling of 20605733053 in words is "twenty billion, six hundred five million, seven hundred thirty-three thousand, fifty-three".