556105999 has 2 divisors, whose sum is σ = 556106000. Its totient is φ = 556105998.

The previous prime is 556105987. The next prime is 556106011. The reversal of 556105999 is 999501655.

It is a balanced prime because it is at equal distance from previous prime (556105987) and next prime (556106011).

It is a cyclic number.

It is not a de Polignac number, because 556105999 - 2⁷ = 556105871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556105499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278052999 + 278053000.

It is an arithmetic number, because the mean of its divisors is an integer number (278053000).

Almost surely, 2^556105999 is an apocalyptic number.

556105999 is a deficient number, since it is larger than the sum of its proper divisors (1).

556105999 is an equidigital number, since it uses as much as digits as its factorization.

556105999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 546750, while the sum is 49.

The square root of 556105999 is about 23581.8998174447. The cubic root of 556105999 is about 822.3421038787.

The spelling of 556105999 in words is "five hundred fifty-six million, one hundred five thousand, nine hundred ninety-nine".