51611501560679 has 2 divisors, whose sum is σ = 51611501560680. Its totient is φ = 51611501560678.

The previous prime is 51611501560603. The next prime is 51611501560681. The reversal of 51611501560679 is 97606510511615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51611501560679 - 2¹⁶ = 51611501495143 is a prime.

Together with 51611501560681, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51611501560679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611501560979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805750780339 + 25805750780340.

It is an arithmetic number, because the mean of its divisors is an integer number (25805750780340).

Almost surely, 2^{51611501560679} is an apocalyptic number.

51611501560679 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611501560679 is an equidigital number, since it uses as much as digits as its factorization.

51611501560679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 53.

The spelling of 51611501560679 in words is "fifty-one trillion, six hundred eleven billion, five hundred one million, five hundred sixty thousand, six hundred seventy-nine".