20354632060253 has 2 divisors, whose sum is σ = 20354632060254. Its totient is φ = 20354632060252.

The previous prime is 20354632060187. The next prime is 20354632060261. The reversal of 20354632060253 is 35206023645302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17667924242329 + 2686707817924 = 4203323^2 + 1639118^2 .

It is a cyclic number.

It is not a de Polignac number, because 20354632060253 - 2³² = 20350337092957 is a prime.

It is a super-2 number, since 2×20354632060253² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20354632060253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20354632060153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177316030126 + 10177316030127.

It is an arithmetic number, because the mean of its divisors is an integer number (10177316030127).

Almost surely, 2^{20354632060253} is an apocalyptic number.

It is an amenable number.

20354632060253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354632060253 is an equidigital number, since it uses as much as digits as its factorization.

20354632060253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 20354632060253 in words is "twenty trillion, three hundred fifty-four billion, six hundred thirty-two million, sixty thousand, two hundred fifty-three".