556006999 has 2 divisors, whose sum is σ = 556007000. Its totient is φ = 556006998.

The previous prime is 556006993. The next prime is 556007107. The reversal of 556006999 is 999600655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556006999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556006993) 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, 278003499 + 278003500.

It is an arithmetic number, because the mean of its divisors is an integer number (278003500).

Almost surely, 2^556006999 is an apocalyptic number.

556006999 is a deficient number, since it is larger than the sum of its proper divisors (1).

556006999 is an equidigital number, since it uses as much as digits as its factorization.

556006999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 49.

The square root of 556006999 is about 23579.8006564941. The cubic root of 556006999 is about 822.2933022114.

The spelling of 556006999 in words is "five hundred fifty-six million, six thousand, nine hundred ninety-nine".