550563420257 has 2 divisors, whose sum is σ = 550563420258. Its totient is φ = 550563420256.

The previous prime is 550563420157. The next prime is 550563420263. The reversal of 550563420257 is 752024365055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546299852641 + 4263567616 = 739121^2 + 65296^2 .

It is a cyclic number.

It is not a de Polignac number, because 550563420257 - 2¹⁰ = 550563419233 is a prime.

It is not a weakly prime, because it can be changed into another prime (550563420157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275281710128 + 275281710129.

It is an arithmetic number, because the mean of its divisors is an integer number (275281710129).

Almost surely, 2^550563420257 is an apocalyptic number.

It is an amenable number.

550563420257 is a deficient number, since it is larger than the sum of its proper divisors (1).

550563420257 is an equidigital number, since it uses as much as digits as its factorization.

550563420257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260000, while the sum is 44.

The spelling of 550563420257 in words is "five hundred fifty billion, five hundred sixty-three million, four hundred twenty thousand, two hundred fifty-seven".