51333450223073 has 2 divisors, whose sum is σ = 51333450223074. Its totient is φ = 51333450223072.

The previous prime is 51333450223067. The next prime is 51333450223091. The reversal of 51333450223073 is 37032205433315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38747537461504 + 12585912761569 = 6224752^2 + 3547663^2 .

It is a cyclic number.

It is not a de Polignac number, because 51333450223073 - 2⁴⁰ = 50233938595297 is a prime.

It is a super-5 number, since 5×51333450223073⁵ (a number of 70 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51333450223073.

It is not a weakly prime, because it can be changed into another prime (51333450223973) 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, 25666725111536 + 25666725111537.

It is an arithmetic number, because the mean of its divisors is an integer number (25666725111537).

Almost surely, 2^{51333450223073} is an apocalyptic number.

It is an amenable number.

51333450223073 is a deficient number, since it is larger than the sum of its proper divisors (1).

51333450223073 is an equidigital number, since it uses as much as digits as its factorization.

51333450223073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 41.

Adding to 51333450223073 its reverse (37032205433315), we get a palindrome (88365655656388).

The spelling of 51333450223073 in words is "fifty-one trillion, three hundred thirty-three billion, four hundred fifty million, two hundred twenty-three thousand, seventy-three".