550145 has 8 divisors (see below), whose sum is σ = 695040. Its totient is φ = 416880.

The previous prime is 550139. The next prime is 550163. The reversal of 550145 is 541055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550145 - 2⁴ = 550129 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801 + ... + 2990.

It is an arithmetic number, because the mean of its divisors is an integer number (86880).

2⁵⁵⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

550145 is a deficient number, since it is larger than the sum of its proper divisors (144895).

550145 is a wasteful number, since it uses less digits than its factorization.

550145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 550145 is about 741.7176012473. The cubic root of 550145 is about 81.9393265234.

The spelling of 550145 in words is "five hundred fifty thousand, one hundred forty-five".