51594415589 has 2 divisors, whose sum is σ = 51594415590. Its totient is φ = 51594415588.

The previous prime is 51594415553. The next prime is 51594415619. The reversal of 51594415589 is 98551449515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42232305025 + 9362110564 = 205505^2 + 96758^2 .

It is a cyclic number.

It is not a de Polignac number, because 51594415589 - 2²⁴ = 51577638373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51594415529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25797207794 + 25797207795.

It is an arithmetic number, because the mean of its divisors is an integer number (25797207795).

Almost surely, 2^51594415589 is an apocalyptic number.

It is an amenable number.

51594415589 is a deficient number, since it is larger than the sum of its proper divisors (1).

51594415589 is an equidigital number, since it uses as much as digits as its factorization.

51594415589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480000, while the sum is 56.

The spelling of 51594415589 in words is "fifty-one billion, five hundred ninety-four million, four hundred fifteen thousand, five hundred eighty-nine".