51035425321 has 2 divisors, whose sum is σ = 51035425322. Its totient is φ = 51035425320.

The previous prime is 51035425289. The next prime is 51035425339. The reversal of 51035425321 is 12352453015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50743869696 + 291555625 = 225264^2 + 17075^2 .

It is a cyclic number.

It is not a de Polignac number, because 51035425321 - 2⁵ = 51035425289 is a prime.

It is a super-2 number, since 2×51035425321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51035428321) 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, 25517712660 + 25517712661.

It is an arithmetic number, because the mean of its divisors is an integer number (25517712661).

Almost surely, 2^51035425321 is an apocalyptic number.

It is an amenable number.

51035425321 is a deficient number, since it is larger than the sum of its proper divisors (1).

51035425321 is an equidigital number, since it uses as much as digits as its factorization.

51035425321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 51035425321 its reverse (12352453015), we get a palindrome (63387878336).

The spelling of 51035425321 in words is "fifty-one billion, thirty-five million, four hundred twenty-five thousand, three hundred twenty-one".