1000006559 has 4 divisors (see below), whose sum is σ = 1000076616. Its totient is φ = 999936504.

The previous prime is 1000006541. The next prime is 1000006571. The reversal of 1000006559 is 9556000001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1000006559 - 2²⁴ = 983229343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000006459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084 + ... + 45009.

It is an arithmetic number, because the mean of its divisors is an integer number (250019154).

Almost surely, 2^1000006559 is an apocalyptic number.

1000006559 is a deficient number, since it is larger than the sum of its proper divisors (70057).

1000006559 is an equidigital number, since it uses as much as digits as its factorization.

1000006559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70056.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 1000006559 is about 31622.8803084096. The cubic root of 1000006559 is about 1000.0021863286.

The spelling of 1000006559 in words is "one billion, six thousand, five hundred fifty-nine".