550945 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 438000.

The previous prime is 550939. The next prime is 550951. The reversal of 550945 is 549055.

It is an interprime number because it is at equal distance from previous prime (550939) and next prime (550951).

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

It is not a de Polignac number, because 550945 - 2³ = 550937 is a prime.

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, 1036 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁵⁵⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

550945 is a deficient number, since it is larger than the sum of its proper divisors (114335).

550945 is a wasteful number, since it uses less digits than its factorization.

550945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 550945 is about 742.2566941429. The cubic root of 550945 is about 81.9790249743.

The spelling of 550945 in words is "five hundred fifty thousand, nine hundred forty-five".