550333001 has 4 divisors (see below), whose sum is σ = 551892372. Its totient is φ = 548773632.

The previous prime is 550332997. The next prime is 550333031. The reversal of 550333001 is 100333055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100333055 = 5 ⋅20066611.

It can be written as a sum of positive squares in 2 ways, for example, as 74046025 + 476286976 = 8605^2 + 21824^2 .

It is a cyclic number.

It is not a de Polignac number, because 550333001 - 2² = 550332997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550333031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779156 + ... + 779861.

It is an arithmetic number, because the mean of its divisors is an integer number (137973093).

Almost surely, 2^550333001 is an apocalyptic number.

It is an amenable number.

550333001 is a deficient number, since it is larger than the sum of its proper divisors (1559371).

550333001 is a wasteful number, since it uses less digits than its factorization.

550333001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559370.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 550333001 is about 23459.1773299918. The cubic root of 550333001 is about 819.4865916660.

Adding to 550333001 its reverse (100333055), we get a palindrome (650666056).

The spelling of 550333001 in words is "five hundred fifty million, three hundred thirty-three thousand, one".