51594919433 has 2 divisors, whose sum is σ = 51594919434. Its totient is φ = 51594919432.

The previous prime is 51594919373. The next prime is 51594919447. The reversal of 51594919433 is 33491949515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50260259344 + 1334660089 = 224188^2 + 36533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51594919433 is a prime.

It is a super-3 number, since 3×51594919433³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (51594919333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25797459716 + 25797459717.

It is an arithmetic number, because the mean of its divisors is an integer number (25797459717).

Almost surely, 2^51594919433 is an apocalyptic number.

It is an amenable number.

51594919433 is a deficient number, since it is larger than the sum of its proper divisors (1).

51594919433 is an equidigital number, since it uses as much as digits as its factorization.

51594919433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 53.

The spelling of 51594919433 in words is "fifty-one billion, five hundred ninety-four million, nine hundred nineteen thousand, four hundred thirty-three".