1000005559 has 4 divisors (see below), whose sum is σ = 1142863504. Its totient is φ = 857147616.

The previous prime is 1000005547. The next prime is 1000005583. The reversal of 1000005559 is 9555000001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000005559 - 2⁵ = 1000005527 is a prime.

It is a super-2 number, since 2×1000005559² = 2000022236061804962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000005959) 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, 71428962 + ... + 71428975.

It is an arithmetic number, because the mean of its divisors is an integer number (285715876).

Almost surely, 2^1000005559 is an apocalyptic number.

1000005559 is a deficient number, since it is larger than the sum of its proper divisors (142857945).

1000005559 is an equidigital number, since it uses as much as digits as its factorization.

1000005559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142857944.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1000005559 is about 31622.8644970692. The cubic root of 1000005559 is about 1000.0018529966.

The spelling of 1000005559 in words is "one billion, five thousand, five hundred fifty-nine".