550545 has 24 divisors (see below), whose sum is σ = 943104. Its totient is φ = 274176.

The previous prime is 550541. The next prime is 550553. The reversal of 550545 is 545055.

It is not a de Polignac number, because 550545 - 2² = 550541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4272 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (39296).

2⁵⁵⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

550545 is a deficient number, since it is larger than the sum of its proper divisors (392559).

550545 is a wasteful number, since it uses less digits than its factorization.

550545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 550545 is about 741.9871966550. The cubic root of 550545 is about 81.9591805560.

The spelling of 550545 in words is "five hundred fifty thousand, five hundred forty-five".