555559 has 4 divisors (see below), whose sum is σ = 557280. Its totient is φ = 553840.

The previous prime is 555557. The next prime is 555589. The reversal of 555559 is 955555.

555559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 555559 - 2¹ = 555557 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555557) 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, 214 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (139320).

2⁵⁵⁵⁵⁵⁹ is an apocalyptic number.

555559 is a deficient number, since it is larger than the sum of its proper divisors (1721).

555559 is a wasteful number, since it uses less digits than its factorization.

555559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its digits is 28125, while the sum is 34.

The square root of 555559 is about 745.3583030999. The cubic root of 555559 is about 82.2072390386.

The spelling of 555559 in words is "five hundred fifty-five thousand, five hundred fifty-nine".