53663652389 has 2 divisors, whose sum is σ = 53663652390. Its totient is φ = 53663652388.

The previous prime is 53663652347. The next prime is 53663652397. The reversal of 53663652389 is 98325636635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40680873025 + 12982779364 = 201695^2 + 113942^2 .

It is a cyclic number.

It is not a de Polignac number, because 53663652389 - 2¹² = 53663648293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53663651389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831826194 + 26831826195.

It is an arithmetic number, because the mean of its divisors is an integer number (26831826195).

Almost surely, 2^53663652389 is an apocalyptic number.

It is an amenable number.

53663652389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53663652389 is an equidigital number, since it uses as much as digits as its factorization.

53663652389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20995200, while the sum is 56.

The spelling of 53663652389 in words is "fifty-three billion, six hundred sixty-three million, six hundred fifty-two thousand, three hundred eighty-nine".