20675364253 has 2 divisors, whose sum is σ = 20675364254. Its totient is φ = 20675364252.

The previous prime is 20675364233. The next prime is 20675364271. The reversal of 20675364253 is 35246357602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17094778009 + 3580586244 = 130747^2 + 59838^2 .

It is a cyclic number.

It is not a de Polignac number, because 20675364253 - 2¹³ = 20675356061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20675364233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10337682126 + 10337682127.

It is an arithmetic number, because the mean of its divisors is an integer number (10337682127).

Almost surely, 2^20675364253 is an apocalyptic number.

It is an amenable number.

20675364253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20675364253 is an equidigital number, since it uses as much as digits as its factorization.

20675364253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 20675364253 in words is "twenty billion, six hundred seventy-five million, three hundred sixty-four thousand, two hundred fifty-three".