553555422401 has 2 divisors, whose sum is σ = 553555422402. Its totient is φ = 553555422400.

The previous prime is 553555422389. The next prime is 553555422419. The reversal of 553555422401 is 104224555355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427913530801 + 125641891600 = 654151^2 + 354460^2 .

It is a cyclic number.

It is not a de Polignac number, because 553555422401 - 2³⁰ = 552481680577 is a prime.

It is a super-3 number, since 3×553555422401³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (553555422421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276777711200 + 276777711201.

It is an arithmetic number, because the mean of its divisors is an integer number (276777711201).

Almost surely, 2^553555422401 is an apocalyptic number.

It is an amenable number.

553555422401 is a deficient number, since it is larger than the sum of its proper divisors (1).

553555422401 is an equidigital number, since it uses as much as digits as its factorization.

553555422401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 553555422401 its reverse (104224555355), we get a palindrome (657779977756).

The spelling of 553555422401 in words is "five hundred fifty-three billion, five hundred fifty-five million, four hundred twenty-two thousand, four hundred one".