556463249 has 2 divisors, whose sum is σ = 556463250. Its totient is φ = 556463248.

The previous prime is 556463231. The next prime is 556463251. The reversal of 556463249 is 942364655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554272849 + 2190400 = 23543^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 556463249 - 2⁸ = 556462993 is a prime.

Together with 556463251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556463269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278231624 + 278231625.

It is an arithmetic number, because the mean of its divisors is an integer number (278231625).

Almost surely, 2^556463249 is an apocalyptic number.

It is an amenable number.

556463249 is a deficient number, since it is larger than the sum of its proper divisors (1).

556463249 is an equidigital number, since it uses as much as digits as its factorization.

556463249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 44.

The square root of 556463249 is about 23589.4732666925. The cubic root of 556463249 is about 822.5181607394.

The spelling of 556463249 in words is "five hundred fifty-six million, four hundred sixty-three thousand, two hundred forty-nine".