52213665389 has 2 divisors, whose sum is σ = 52213665390. Its totient is φ = 52213665388.

The previous prime is 52213665263. The next prime is 52213665391. The reversal of 52213665389 is 98356631225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29698662889 + 22515002500 = 172333^2 + 150050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52213665389 is a prime.

Together with 52213665391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52213664389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26106832694 + 26106832695.

It is an arithmetic number, because the mean of its divisors is an integer number (26106832695).

Almost surely, 2^52213665389 is an apocalyptic number.

It is an amenable number.

52213665389 is a deficient number, since it is larger than the sum of its proper divisors (1).

52213665389 is an equidigital number, since it uses as much as digits as its factorization.

52213665389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 50.

The spelling of 52213665389 in words is "fifty-two billion, two hundred thirteen million, six hundred sixty-five thousand, three hundred eighty-nine".