65555050487 has 2 divisors, whose sum is σ = 65555050488. Its totient is φ = 65555050486.

The previous prime is 65555050459. The next prime is 65555050493. The reversal of 65555050487 is 78405055556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65555050487 - 2¹² = 65555046391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65555050417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32777525243 + 32777525244.

It is an arithmetic number, because the mean of its divisors is an integer number (32777525244).

Almost surely, 2^65555050487 is an apocalyptic number.

65555050487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65555050487 is an equidigital number, since it uses as much as digits as its factorization.

65555050487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200000, while the sum is 50.

The spelling of 65555050487 in words is "sixty-five billion, five hundred fifty-five million, fifty thousand, four hundred eighty-seven".