550013509 has 8 divisors (see below), whose sum is σ = 554860800. Its totient is φ = 545187936.

The previous prime is 550013459. The next prime is 550013531. The reversal of 550013509 is 905310055.

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 550013509 - 2¹⁵ = 549980741 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 (550013309) 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, 47692 + ... + 58090.

It is an arithmetic number, because the mean of its divisors is an integer number (69357600).

Almost surely, 2^550013509 is an apocalyptic number.

It is an amenable number.

550013509 is a deficient number, since it is larger than the sum of its proper divisors (4847291).

550013509 is a wasteful number, since it uses less digits than its factorization.

550013509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10859.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 550013509 is about 23452.3668101964. The cubic root of 550013509 is about 819.3279785524.

The spelling of 550013509 in words is "five hundred fifty million, thirteen thousand, five hundred nine".