50555578589 has 2 divisors, whose sum is σ = 50555578590. Its totient is φ = 50555578588.

The previous prime is 50555578561. The next prime is 50555578621. The reversal of 50555578589 is 98587555505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28686196900 + 21869381689 = 169370^2 + 147883^2 .

It is a cyclic number.

It is not a de Polignac number, because 50555578589 - 2¹² = 50555574493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50555571589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277789294 + 25277789295.

It is an arithmetic number, because the mean of its divisors is an integer number (25277789295).

Almost surely, 2^50555578589 is an apocalyptic number.

It is an amenable number.

50555578589 is a deficient number, since it is larger than the sum of its proper divisors (1).

50555578589 is an equidigital number, since it uses as much as digits as its factorization.

50555578589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000000, while the sum is 62.

The spelling of 50555578589 in words is "fifty billion, five hundred fifty-five million, five hundred seventy-eight thousand, five hundred eighty-nine".