550365 has 8 divisors (see below), whose sum is σ = 880608. Its totient is φ = 293520.

The previous prime is 550351. The next prime is 550369. The reversal of 550365 is 563055.

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

It is not a de Polignac number, because 550365 - 2¹⁵ = 517597 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550365.

It is not an unprimeable number, because it can be changed into a prime (550369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18331 + ... + 18360.

It is an arithmetic number, because the mean of its divisors is an integer number (110076).

2⁵⁵⁰³⁶⁵ is an apocalyptic number.

It is an amenable number.

550365 is a deficient number, since it is larger than the sum of its proper divisors (330243).

550365 is a wasteful number, since it uses less digits than its factorization.

550365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36699.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 550365 is about 741.8658908455. The cubic root of 550365 is about 81.9502474318.

The spelling of 550365 in words is "five hundred fifty thousand, three hundred sixty-five".