550435513 has 4 divisors (see below), whose sum is σ = 559459108. Its totient is φ = 541411920.

The previous prime is 550435493. The next prime is 550435519. The reversal of 550435513 is 315534055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218211984 + 332223529 = 14772^2 + 18227^2 .

It is a cyclic number.

It is not a de Polignac number, because 550435513 - 2⁵ = 550435481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550435519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4511706 + ... + 4511827.

It is an arithmetic number, because the mean of its divisors is an integer number (139864777).

Almost surely, 2^550435513 is an apocalyptic number.

It is an amenable number.

550435513 is a deficient number, since it is larger than the sum of its proper divisors (9023595).

550435513 is an equidigital number, since it uses as much as digits as its factorization.

550435513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023594.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 550435513 is about 23461.3621301066. The cubic root of 550435513 is about 819.5374711600.

Adding to 550435513 its reverse (315534055), we get a palindrome (865969568).

The spelling of 550435513 in words is "five hundred fifty million, four hundred thirty-five thousand, five hundred thirteen".