555811603849 has 2 divisors, whose sum is σ = 555811603850. Its totient is φ = 555811603848.

The previous prime is 555811603819. The next prime is 555811603873. The reversal of 555811603849 is 948306118555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555685266249 + 126337600 = 745443^2 + 11240^2 .

It is a cyclic number.

It is not a de Polignac number, because 555811603849 - 2²⁵ = 555778049417 is a prime.

It is a super-2 number, since 2×555811603849² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 555811603849.

It is not a weakly prime, because it can be changed into another prime (555811603819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277905801924 + 277905801925.

It is an arithmetic number, because the mean of its divisors is an integer number (277905801925).

Almost surely, 2^555811603849 is an apocalyptic number.

It is an amenable number.

555811603849 is a deficient number, since it is larger than the sum of its proper divisors (1).

555811603849 is an equidigital number, since it uses as much as digits as its factorization.

555811603849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 555811603849 in words is "five hundred fifty-five billion, eight hundred eleven million, six hundred three thousand, eight hundred forty-nine".