555778462249 has 2 divisors, whose sum is σ = 555778462250. Its totient is φ = 555778462248.

The previous prime is 555778462193. The next prime is 555778462273. The reversal of 555778462249 is 942264877555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485067675024 + 70710787225 = 696468^2 + 265915^2 .

It is a cyclic number.

It is not a de Polignac number, because 555778462249 - 2⁹ = 555778461737 is a prime.

It is not a weakly prime, because it can be changed into another prime (555778460249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277889231124 + 277889231125.

It is an arithmetic number, because the mean of its divisors is an integer number (277889231125).

Almost surely, 2^555778462249 is an apocalyptic number.

It is an amenable number.

555778462249 is a deficient number, since it is larger than the sum of its proper divisors (1).

555778462249 is an equidigital number, since it uses as much as digits as its factorization.

555778462249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344000, while the sum is 64.

The spelling of 555778462249 in words is "five hundred fifty-five billion, seven hundred seventy-eight million, four hundred sixty-two thousand, two hundred forty-nine".