550477 has 4 divisors (see below), whose sum is σ = 582876. Its totient is φ = 518080.

The previous prime is 550471. The next prime is 550489. The reversal of 550477 is 774055.

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 385641 + 164836 = 621^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 550477 - 2³ = 550469 is a prime.

It is a Duffinian number.

550477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550471) 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, 16174 + ... + 16207.

It is an arithmetic number, because the mean of its divisors is an integer number (145719).

2⁵⁵⁰⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

550477 is a deficient number, since it is larger than the sum of its proper divisors (32399).

550477 is a wasteful number, since it uses less digits than its factorization.

550477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32398.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 550477 is about 741.9413723469. The cubic root of 550477 is about 81.9558060491.

The spelling of 550477 in words is "five hundred fifty thousand, four hundred seventy-seven".