555605 has 4 divisors (see below), whose sum is σ = 666732. Its totient is φ = 444480.

The previous prime is 555593. The next prime is 555637. The reversal of 555605 is 506555.

555605 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 can be written as a sum of positive squares in 2 ways, for example, as 252004 + 303601 = 502^2 + 551^2 .

It is not a de Polignac number, because 555605 - 2⁴ = 555589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55556 + ... + 55565.

It is an arithmetic number, because the mean of its divisors is an integer number (166683).

2⁵⁵⁵⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

555605 is a deficient number, since it is larger than the sum of its proper divisors (111127).

555605 is a wasteful number, since it uses less digits than its factorization.

555605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111126.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 555605 is about 745.3891601036. The cubic root of 555605 is about 82.2095078817.

The spelling of 555605 in words is "five hundred fifty-five thousand, six hundred five".