20535065293 has 2 divisors, whose sum is σ = 20535065294. Its totient is φ = 20535065292.

The previous prime is 20535065281. The next prime is 20535065303. The reversal of 20535065293 is 39256053502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11876204484 + 8658860809 = 108978^2 + 93053^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535065293 - 2⁵ = 20535065261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20535065203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267532646 + 10267532647.

It is an arithmetic number, because the mean of its divisors is an integer number (10267532647).

Almost surely, 2^20535065293 is an apocalyptic number.

It is an amenable number.

20535065293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535065293 is an equidigital number, since it uses as much as digits as its factorization.

20535065293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 40.

The spelling of 20535065293 in words is "twenty billion, five hundred thirty-five million, sixty-five thousand, two hundred ninety-three".