550128101603 has 2 divisors, whose sum is σ = 550128101604. Its totient is φ = 550128101602.

The previous prime is 550128101563. The next prime is 550128101641. The reversal of 550128101603 is 306101821055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550128101603 - 2¹⁰ = 550128100579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550128101603.

It is not a weakly prime, because it can be changed into another prime (550128100603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275064050801 + 275064050802.

It is an arithmetic number, because the mean of its divisors is an integer number (275064050802).

Almost surely, 2^550128101603 is an apocalyptic number.

550128101603 is a deficient number, since it is larger than the sum of its proper divisors (1).

550128101603 is an equidigital number, since it uses as much as digits as its factorization.

550128101603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 550128101603 its reverse (306101821055), we get a palindrome (856229922658).

The spelling of 550128101603 in words is "five hundred fifty billion, one hundred twenty-eight million, one hundred one thousand, six hundred three".