51342005017 has 2 divisors, whose sum is σ = 51342005018. Its totient is φ = 51342005016.

The previous prime is 51342004969. The next prime is 51342005059. The reversal of 51342005017 is 71050024315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50926497561 + 415507456 = 225669^2 + 20384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51342005017 is a prime.

It is not a weakly prime, because it can be changed into another prime (51342005087) 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, 25671002508 + 25671002509.

It is an arithmetic number, because the mean of its divisors is an integer number (25671002509).

Almost surely, 2^51342005017 is an apocalyptic number.

It is an amenable number.

51342005017 is a deficient number, since it is larger than the sum of its proper divisors (1).

51342005017 is an equidigital number, since it uses as much as digits as its factorization.

51342005017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 51342005017 in words is "fifty-one billion, three hundred forty-two million, five thousand, seventeen".