51211624023653 has 2 divisors, whose sum is σ = 51211624023654. Its totient is φ = 51211624023652.

The previous prime is 51211624023601. The next prime is 51211624023671. The reversal of 51211624023653 is 35632042611215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50896210368964 + 315413654689 = 7134158^2 + 561617^2 .

It is a cyclic number.

It is not a de Polignac number, because 51211624023653 - 2⁸ = 51211624023397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51211624023653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51211624020653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25605812011826 + 25605812011827.

It is an arithmetic number, because the mean of its divisors is an integer number (25605812011827).

Almost surely, 2^{51211624023653} is an apocalyptic number.

It is an amenable number.

51211624023653 is a deficient number, since it is larger than the sum of its proper divisors (1).

51211624023653 is an equidigital number, since it uses as much as digits as its factorization.

51211624023653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

Adding to 51211624023653 its reverse (35632042611215), we get a palindrome (86843666634868).

The spelling of 51211624023653 in words is "fifty-one trillion, two hundred eleven billion, six hundred twenty-four million, twenty-three thousand, six hundred fifty-three".