51406500611 has 2 divisors, whose sum is σ = 51406500612. Its totient is φ = 51406500610.

The previous prime is 51406500581. The next prime is 51406500631. The reversal of 51406500611 is 11600560415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51406500611 is a prime.

It is not a weakly prime, because it can be changed into another prime (51406500631) 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, 25703250305 + 25703250306.

It is an arithmetic number, because the mean of its divisors is an integer number (25703250306).

Almost surely, 2^51406500611 is an apocalyptic number.

51406500611 is a deficient number, since it is larger than the sum of its proper divisors (1).

51406500611 is an equidigital number, since it uses as much as digits as its factorization.

51406500611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 51406500611 in words is "fifty-one billion, four hundred six million, five hundred thousand, six hundred eleven".