555507745447 has 2 divisors, whose sum is σ = 555507745448. Its totient is φ = 555507745446.

The previous prime is 555507745399. The next prime is 555507745517. The reversal of 555507745447 is 744547705555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 555507745447 - 2⁷ = 555507745319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555507745391 and 555507745400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555507715447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277753872723 + 277753872724.

It is an arithmetic number, because the mean of its divisors is an integer number (277753872724).

Almost surely, 2^555507745447 is an apocalyptic number.

555507745447 is a deficient number, since it is larger than the sum of its proper divisors (1).

555507745447 is an equidigital number, since it uses as much as digits as its factorization.

555507745447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68600000, while the sum is 58.

The spelling of 555507745447 in words is "five hundred fifty-five billion, five hundred seven million, seven hundred forty-five thousand, four hundred forty-seven".