550348845187553 has 2 divisors, whose sum is σ = 550348845187554. Its totient is φ = 550348845187552.

The previous prime is 550348845187541. The next prime is 550348845187579. The reversal of 550348845187553 is 355781548843055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518572546307344 + 31776298880209 = 22772188^2 + 5637047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550348845187553 is a prime.

It is a super-3 number, since 3×550348845187553³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (550348845187853) 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, 275174422593776 + 275174422593777.

It is an arithmetic number, because the mean of its divisors is an integer number (275174422593777).

Almost surely, 2^{550348845187553} is an apocalyptic number.

It is an amenable number.

550348845187553 is a deficient number, since it is larger than the sum of its proper divisors (1).

550348845187553 is an equidigital number, since it uses as much as digits as its factorization.

550348845187553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800000, while the sum is 71.

The spelling of 550348845187553 in words is "five hundred fifty trillion, three hundred forty-eight billion, eight hundred forty-five million, one hundred eighty-seven thousand, five hundred fifty-three".