550551226222601 has 2 divisors, whose sum is σ = 550551226222602. Its totient is φ = 550551226222600.

The previous prime is 550551226222561. The next prime is 550551226222631. The reversal of 550551226222601 is 106222622155055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542252932005625 + 8298294216976 = 23286325^2 + 2880676^2 .

It is a cyclic number.

It is not a de Polignac number, because 550551226222601 - 2¹⁸ = 550551225960457 is a prime.

It is not a weakly prime, because it can be changed into another prime (550551226222631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275275613111300 + 275275613111301.

It is an arithmetic number, because the mean of its divisors is an integer number (275275613111301).

Almost surely, 2^{550551226222601} is an apocalyptic number.

It is an amenable number.

550551226222601 is a deficient number, since it is larger than the sum of its proper divisors (1).

550551226222601 is an equidigital number, since it uses as much as digits as its factorization.

550551226222601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720000, while the sum is 44.

Adding to 550551226222601 its reverse (106222622155055), we get a palindrome (656773848377656).

The spelling of 550551226222601 in words is "five hundred fifty trillion, five hundred fifty-one billion, two hundred twenty-six million, two hundred twenty-two thousand, six hundred one".