5555550647 has 2 divisors, whose sum is σ = 5555550648. Its totient is φ = 5555550646.

The previous prime is 5555550607. The next prime is 5555550653. The reversal of 5555550647 is 7460555555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5555550647 - 2¹⁸ = 5555288503 is a prime.

It is a super-3 number, since 3×5555550647³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555550607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777775323 + 2777775324.

It is an arithmetic number, because the mean of its divisors is an integer number (2777775324).

Almost surely, 2^5555550647 is an apocalyptic number.

5555550647 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555550647 is an equidigital number, since it uses as much as digits as its factorization.

5555550647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2625000, while the sum is 47.

The square root of 5555550647 is about 74535.5663223940. The cubic root of 5555550647 is about 1771.0970936923.

The spelling of 5555550647 in words is "five billion, five hundred fifty-five million, five hundred fifty thousand, six hundred forty-seven".