550515243 has 8 divisors (see below), whose sum is σ = 734662656. Its totient is φ = 366689000.

The previous prime is 550515221. The next prime is 550515299. The reversal of 550515243 is 342515055.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 550515243 - 2²² = 546320939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550515243.

It is not an unprimeable number, because it can be changed into a prime (550515943) 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, 76263 + ... + 83168.

It is an arithmetic number, because the mean of its divisors is an integer number (91832832).

Almost surely, 2^550515243 is an apocalyptic number.

550515243 is a deficient number, since it is larger than the sum of its proper divisors (184147413).

550515243 is a wasteful number, since it uses less digits than its factorization.

550515243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160585.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 550515243 is about 23463.0612452851. The cubic root of 550515243 is about 819.5770389606.

The spelling of 550515243 in words is "five hundred fifty million, five hundred fifteen thousand, two hundred forty-three".