20502535033 has 2 divisors, whose sum is σ = 20502535034. Its totient is φ = 20502535032.

The previous prime is 20502534881. The next prime is 20502535049. The reversal of 20502535033 is 33053520502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20418409449 + 84125584 = 142893^2 + 9172^2 .

It is a cyclic number.

It is not a de Polignac number, because 20502535033 - 2¹³ = 20502526841 is a prime.

It is a super-2 number, since 2×20502535033² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20502534992 and 20502535010.

It is not a weakly prime, because it can be changed into another prime (20502535073) 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, 10251267516 + 10251267517.

It is an arithmetic number, because the mean of its divisors is an integer number (10251267517).

Almost surely, 2^20502535033 is an apocalyptic number.

It is an amenable number.

20502535033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502535033 is an equidigital number, since it uses as much as digits as its factorization.

20502535033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 28.

The spelling of 20502535033 in words is "twenty billion, five hundred two million, five hundred thirty-five thousand, thirty-three".