550515021207 has 4 divisors (see below), whose sum is σ = 734020028280. Its totient is φ = 367010014136.

The previous prime is 550515021137. The next prime is 550515021311. The reversal of 550515021207 is 702120515055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550515021207 - 2¹⁸ = 550514759063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550515021607) 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, 91752503532 + ... + 91752503537.

It is an arithmetic number, because the mean of its divisors is an integer number (183505007070).

Almost surely, 2^550515021207 is an apocalyptic number.

550515021207 is a deficient number, since it is larger than the sum of its proper divisors (183505007073).

550515021207 is a wasteful number, since it uses less digits than its factorization.

550515021207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183505007072.

The product of its (nonzero) digits is 17500, while the sum is 33.

The spelling of 550515021207 in words is "five hundred fifty billion, five hundred fifteen million, twenty-one thousand, two hundred seven".