51701311073 has 2 divisors, whose sum is σ = 51701311074. Its totient is φ = 51701311072.

The previous prime is 51701311043. The next prime is 51701311127. The reversal of 51701311073 is 37011310715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40649414689 + 11051896384 = 201617^2 + 105128^2 .

It is a cyclic number.

It is not a de Polignac number, because 51701311073 - 2¹⁸ = 51701048929 is a prime.

It is a super-2 number, since 2×51701311073² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51701311033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850655536 + 25850655537.

It is an arithmetic number, because the mean of its divisors is an integer number (25850655537).

Almost surely, 2^51701311073 is an apocalyptic number.

It is an amenable number.

51701311073 is a deficient number, since it is larger than the sum of its proper divisors (1).

51701311073 is an equidigital number, since it uses as much as digits as its factorization.

51701311073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205, while the sum is 29.

Adding to 51701311073 its reverse (37011310715), we get a palindrome (88712621788).

The spelling of 51701311073 in words is "fifty-one billion, seven hundred one million, three hundred eleven thousand, seventy-three".