51606629653 has 2 divisors, whose sum is σ = 51606629654. Its totient is φ = 51606629652.

The previous prime is 51606629647. The next prime is 51606629699. The reversal of 51606629653 is 35692660615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42931011204 + 8675618449 = 207198^2 + 93143^2 .

It is a cyclic number.

It is not a de Polignac number, because 51606629653 - 2⁵ = 51606629621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51606629597 and 51606629606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51606689653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803314826 + 25803314827.

It is an arithmetic number, because the mean of its divisors is an integer number (25803314827).

Almost surely, 2^51606629653 is an apocalyptic number.

It is an amenable number.

51606629653 is a deficient number, since it is larger than the sum of its proper divisors (1).

51606629653 is an equidigital number, since it uses as much as digits as its factorization.

51606629653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 51606629653 in words is "fifty-one billion, six hundred six million, six hundred twenty-nine thousand, six hundred fifty-three".