550203133 has 4 divisors (see below), whose sum is σ = 550498140. Its totient is φ = 549908128.

The previous prime is 550203127. The next prime is 550203139. The reversal of 550203133 is 331302055.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (550203127) and next prime (550203139).

It can be written as a sum of positive squares in 2 ways, for example, as 379587289 + 170615844 = 19483^2 + 13062^2 .

It is a cyclic number.

It is not a de Polignac number, because 550203133 - 2⁹ = 550202621 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 (550203139) 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, 144688 + ... + 148441.

It is an arithmetic number, because the mean of its divisors is an integer number (137624535).

Almost surely, 2^550203133 is an apocalyptic number.

It is an amenable number.

550203133 is a deficient number, since it is larger than the sum of its proper divisors (295007).

550203133 is a wasteful number, since it uses less digits than its factorization.

550203133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295006.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 550203133 is about 23456.4092094250. The cubic root of 550203133 is about 819.4221255718.

Adding to 550203133 its reverse (331302055), we get a palindrome (881505188).

The spelling of 550203133 in words is "five hundred fifty million, two hundred three thousand, one hundred thirty-three".