550790509 has 8 divisors (see below), whose sum is σ = 563079168. Its totient is φ = 538525680.

The previous prime is 550790507. The next prime is 550790519. The reversal of 550790509 is 905097055.

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 550790509 - 2¹ = 550790507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550790501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45699 + ... + 56479.

It is an arithmetic number, because the mean of its divisors is an integer number (70384896).

Almost surely, 2^550790509 is an apocalyptic number.

It is an amenable number.

550790509 is a deficient number, since it is larger than the sum of its proper divisors (12288659).

550790509 is a wasteful number, since it uses less digits than its factorization.

550790509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915.

The product of its (nonzero) digits is 70875, while the sum is 40.

The square root of 550790509 is about 23468.9264560610. The cubic root of 550790509 is about 819.7136165305.

The spelling of 550790509 in words is "five hundred fifty million, seven hundred ninety thousand, five hundred nine".