50005000055509 has 2 divisors, whose sum is σ = 50005000055510. Its totient is φ = 50005000055508.

The previous prime is 50005000055497. The next prime is 50005000055561. The reversal of 50005000055509 is 90555000050005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49620091487409 + 384908568100 = 7044153^2 + 620410^2 .

It is a cyclic number.

It is not a de Polignac number, because 50005000055509 - 2¹⁷ = 50004999924437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50005000055809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25002500027754 + 25002500027755.

It is an arithmetic number, because the mean of its divisors is an integer number (25002500027755).

Almost surely, 2^{50005000055509} is an apocalyptic number.

It is an amenable number.

50005000055509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50005000055509 is an equidigital number, since it uses as much as digits as its factorization.

50005000055509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 34.

The spelling of 50005000055509 in words is "fifty trillion, five billion, fifty-five thousand, five hundred nine".