2020053638549 has 2 divisors, whose sum is σ = 2020053638550. Its totient is φ = 2020053638548.

The previous prime is 2020053638543. The next prime is 2020053638563. The reversal of 2020053638549 is 9458363500202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1706532033649 + 313521604900 = 1306343^2 + 559930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020053638549 - 2⁸ = 2020053638293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020053638543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010026819274 + 1010026819275.

It is an arithmetic number, because the mean of its divisors is an integer number (1010026819275).

Almost surely, 2^{2020053638549} is an apocalyptic number.

It is an amenable number.

2020053638549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020053638549 is an equidigital number, since it uses as much as digits as its factorization.

2020053638549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 2020053638549 in words is "two trillion, twenty billion, fifty-three million, six hundred thirty-eight thousand, five hundred forty-nine".