556747903 has 2 divisors, whose sum is σ = 556747904. Its totient is φ = 556747902.

The previous prime is 556747847. The next prime is 556747907. The reversal of 556747903 is 309747655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556747903 - 2⁹ = 556747391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556747907) 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, 278373951 + 278373952.

It is an arithmetic number, because the mean of its divisors is an integer number (278373952).

Almost surely, 2^556747903 is an apocalyptic number.

556747903 is a deficient number, since it is larger than the sum of its proper divisors (1).

556747903 is an equidigital number, since it uses as much as digits as its factorization.

556747903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 556747903 is about 23595.5059916078. The cubic root of 556747903 is about 822.6583875339.

The spelling of 556747903 in words is "five hundred fifty-six million, seven hundred forty-seven thousand, nine hundred three".