51751765237651 has 2 divisors, whose sum is σ = 51751765237652. Its totient is φ = 51751765237650.

The previous prime is 51751765237637. The next prime is 51751765237663. The reversal of 51751765237651 is 15673256715715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51751765237651 - 2²⁵ = 51751731683219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51751765237651.

It is not a weakly prime, because it can be changed into another prime (51751765237631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25875882618825 + 25875882618826.

It is an arithmetic number, because the mean of its divisors is an integer number (25875882618826).

Almost surely, 2^{51751765237651} is an apocalyptic number.

51751765237651 is a deficient number, since it is larger than the sum of its proper divisors (1).

51751765237651 is an equidigital number, since it uses as much as digits as its factorization.

51751765237651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46305000, while the sum is 61.

The spelling of 51751765237651 in words is "fifty-one trillion, seven hundred fifty-one billion, seven hundred sixty-five million, two hundred thirty-seven thousand, six hundred fifty-one".