51355060219 has 2 divisors, whose sum is σ = 51355060220. Its totient is φ = 51355060218.

The previous prime is 51355060217. The next prime is 51355060247. The reversal of 51355060219 is 91206055315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51355060219 - 2¹ = 51355060217 is a prime.

It is a super-2 number, since 2×51355060219² (a number of 22 digits) contains 22 as substring.

Together with 51355060217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51355060217) 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, 25677530109 + 25677530110.

It is an arithmetic number, because the mean of its divisors is an integer number (25677530110).

Almost surely, 2^51355060219 is an apocalyptic number.

51355060219 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355060219 is an equidigital number, since it uses as much as digits as its factorization.

51355060219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 51355060219 in words is "fifty-one billion, three hundred fifty-five million, sixty thousand, two hundred nineteen".