51598198523 has 2 divisors, whose sum is σ = 51598198524. Its totient is φ = 51598198522.

The previous prime is 51598198513. The next prime is 51598198571. The reversal of 51598198523 is 32589189515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51598198523 - 2¹⁰ = 51598197499 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51598198513) 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, 25799099261 + 25799099262.

It is an arithmetic number, because the mean of its divisors is an integer number (25799099262).

Almost surely, 2^51598198523 is an apocalyptic number.

51598198523 is a deficient number, since it is larger than the sum of its proper divisors (1).

51598198523 is an equidigital number, since it uses as much as digits as its factorization.

51598198523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 56.

The spelling of 51598198523 in words is "fifty-one billion, five hundred ninety-eight million, one hundred ninety-eight thousand, five hundred twenty-three".