51310443601 has 2 divisors, whose sum is σ = 51310443602. Its totient is φ = 51310443600.

The previous prime is 51310443577. The next prime is 51310443623. The reversal of 51310443601 is 10634401315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51222552976 + 87890625 = 226324^2 + 9375^2 .

It is a cyclic number.

It is not a de Polignac number, because 51310443601 - 2¹⁹ = 51309919313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51310443601.

It is not a weakly prime, because it can be changed into another prime (51310443661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25655221800 + 25655221801.

It is an arithmetic number, because the mean of its divisors is an integer number (25655221801).

Almost surely, 2^51310443601 is an apocalyptic number.

It is an amenable number.

51310443601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51310443601 is an equidigital number, since it uses as much as digits as its factorization.

51310443601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 51310443601 its reverse (10634401315), we get a palindrome (61944844916).

The spelling of 51310443601 in words is "fifty-one billion, three hundred ten million, four hundred forty-three thousand, six hundred one".