20354632055393 has 2 divisors, whose sum is σ = 20354632055394. Its totient is φ = 20354632055392.

The previous prime is 20354632055347. The next prime is 20354632055399. The reversal of 20354632055393 is 39355023645302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20148894517504 + 205737537889 = 4488752^2 + 453583^2 .

It is a cyclic number.

It is not a de Polignac number, because 20354632055393 - 2¹⁰ = 20354632054369 is a prime.

It is a super-2 number, since 2×20354632055393² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20354632055399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177316027696 + 10177316027697.

It is an arithmetic number, because the mean of its divisors is an integer number (10177316027697).

Almost surely, 2^{20354632055393} is an apocalyptic number.

It is an amenable number.

20354632055393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354632055393 is an equidigital number, since it uses as much as digits as its factorization.

20354632055393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748000, while the sum is 50.

The spelling of 20354632055393 in words is "twenty trillion, three hundred fifty-four billion, six hundred thirty-two million, fifty-five thousand, three hundred ninety-three".