51903342593 has 2 divisors, whose sum is σ = 51903342594. Its totient is φ = 51903342592.

The previous prime is 51903342577. The next prime is 51903342607. The reversal of 51903342593 is 39524330915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49768255744 + 2135086849 = 223088^2 + 46207^2 .

It is a cyclic number.

It is not a de Polignac number, because 51903342593 - 2⁴ = 51903342577 is a prime.

It is not a weakly prime, because it can be changed into another prime (51903342523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25951671296 + 25951671297.

It is an arithmetic number, because the mean of its divisors is an integer number (25951671297).

Almost surely, 2^51903342593 is an apocalyptic number.

It is an amenable number.

51903342593 is a deficient number, since it is larger than the sum of its proper divisors (1).

51903342593 is an equidigital number, since it uses as much as digits as its factorization.

51903342593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 51903342593 in words is "fifty-one billion, nine hundred three million, three hundred forty-two thousand, five hundred ninety-three".