51318585959 has 2 divisors, whose sum is σ = 51318585960. Its totient is φ = 51318585958.

The previous prime is 51318585953. The next prime is 51318586021. The reversal of 51318585959 is 95958581315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51318585959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51318585898 and 51318585907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51318585953) 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, 25659292979 + 25659292980.

It is an arithmetic number, because the mean of its divisors is an integer number (25659292980).

Almost surely, 2^51318585959 is an apocalyptic number.

51318585959 is a deficient number, since it is larger than the sum of its proper divisors (1).

51318585959 is an equidigital number, since it uses as much as digits as its factorization.

51318585959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720000, while the sum is 59.

The spelling of 51318585959 in words is "fifty-one billion, three hundred eighteen million, five hundred eighty-five thousand, nine hundred fifty-nine".