51040522423321 has 2 divisors, whose sum is σ = 51040522423322. Its totient is φ = 51040522423320.

The previous prime is 51040522423301. The next prime is 51040522423367. The reversal of 51040522423321 is 12332422504015.

51040522423321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41514040173321 + 9526482250000 = 6443139^2 + 3086500^2 .

It is a cyclic number.

It is not a de Polignac number, because 51040522423321 - 2¹⁹ = 51040521899033 is a prime.

It is not a weakly prime, because it can be changed into another prime (51040522423301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25520261211660 + 25520261211661.

It is an arithmetic number, because the mean of its divisors is an integer number (25520261211661).

Almost surely, 2^{51040522423321} is an apocalyptic number.

It is an amenable number.

51040522423321 is a deficient number, since it is larger than the sum of its proper divisors (1).

51040522423321 is an equidigital number, since it uses as much as digits as its factorization.

51040522423321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 51040522423321 its reverse (12332422504015), we get a palindrome (63372944927336).

The spelling of 51040522423321 in words is "fifty-one trillion, forty billion, five hundred twenty-two million, four hundred twenty-three thousand, three hundred twenty-one".