52221051051313 has 2 divisors, whose sum is σ = 52221051051314. Its totient is φ = 52221051051312.

The previous prime is 52221051051289. The next prime is 52221051051347. The reversal of 52221051051313 is 31315015012225.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33148195957809 + 19072855093504 = 5757447^2 + 4367248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52221051051313 is a prime.

It is not a weakly prime, because it can be changed into another prime (52221051058313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26110525525656 + 26110525525657.

It is an arithmetic number, because the mean of its divisors is an integer number (26110525525657).

Almost surely, 2^{52221051051313} is an apocalyptic number.

It is an amenable number.

52221051051313 is a deficient number, since it is larger than the sum of its proper divisors (1).

52221051051313 is an equidigital number, since it uses as much as digits as its factorization.

52221051051313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 52221051051313 its reverse (31315015012225), we get a palindrome (83536066063538).

The spelling of 52221051051313 in words is "fifty-two trillion, two hundred twenty-one billion, fifty-one million, fifty-one thousand, three hundred thirteen".