550605 has 32 divisors (see below), whose sum is σ = 995328. Its totient is φ = 257600.

The previous prime is 550577. The next prime is 550607. The reversal of 550605 is 506055.

550605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550605 - 2⁶ = 550541 is a prime.

550605 is a modest number, since divided by 605 gives 55 as remainder.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7720 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (31104).

2⁵⁵⁰⁶⁰⁵ is an apocalyptic number.

550605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550605 is a deficient number, since it is larger than the sum of its proper divisors (444723).

550605 is a wasteful number, since it uses less digits than its factorization.

550605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 550605 is about 742.0276275180. The cubic root of 550605 is about 81.9621578314.

The spelling of 550605 in words is "five hundred fifty thousand, six hundred five".