20850504053 has 2 divisors, whose sum is σ = 20850504054. Its totient is φ = 20850504052.

The previous prime is 20850503909. The next prime is 20850504067. The reversal of 20850504053 is 35040505802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17705761969 + 3144742084 = 133063^2 + 56078^2 .

It is a cyclic number.

It is not a de Polignac number, because 20850504053 - 2²⁰ = 20849455477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20850504083) 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, 10425252026 + 10425252027.

It is an arithmetic number, because the mean of its divisors is an integer number (10425252027).

Almost surely, 2^20850504053 is an apocalyptic number.

It is an amenable number.

20850504053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20850504053 is an equidigital number, since it uses as much as digits as its factorization.

20850504053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 20850504053 in words is "twenty billion, eight hundred fifty million, five hundred four thousand, fifty-three".