51592562385409 has 2 divisors, whose sum is σ = 51592562385410. Its totient is φ = 51592562385408.

The previous prime is 51592562385367. The next prime is 51592562385439. The reversal of 51592562385409 is 90458326529515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47295233385409 + 4297329000000 = 6877153^2 + 2073000^2 .

It is a cyclic number.

It is not a de Polignac number, because 51592562385409 - 2⁹ = 51592562384897 is a prime.

It is not a weakly prime, because it can be changed into another prime (51592562385439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25796281192704 + 25796281192705.

It is an arithmetic number, because the mean of its divisors is an integer number (25796281192705).

Almost surely, 2^{51592562385409} is an apocalyptic number.

It is an amenable number.

51592562385409 is a deficient number, since it is larger than the sum of its proper divisors (1).

51592562385409 is an equidigital number, since it uses as much as digits as its factorization.

51592562385409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640000, while the sum is 64.

The spelling of 51592562385409 in words is "fifty-one trillion, five hundred ninety-two billion, five hundred sixty-two million, three hundred eighty-five thousand, four hundred nine".