550670509 has 4 divisors (see below), whose sum is σ = 550761120. Its totient is φ = 550579900.

The previous prime is 550670479. The next prime is 550670539. The reversal of 550670509 is 905076055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (550670479) and next prime (550670539).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550670509 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 (550670539) 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, 35479 + ... + 48580.

It is an arithmetic number, because the mean of its divisors is an integer number (137690280).

Almost surely, 2^550670509 is an apocalyptic number.

It is an amenable number.

550670509 is a deficient number, since it is larger than the sum of its proper divisors (90611).

550670509 is an equidigital number, since it uses as much as digits as its factorization.

550670509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90610.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 550670509 is about 23466.3697448071. The cubic root of 550670509 is about 819.6540822328.

The spelling of 550670509 in words is "five hundred fifty million, six hundred seventy thousand, five hundred nine".