550421303 has 8 divisors (see below), whose sum is σ = 576319968. Its totient is φ = 524686624.

The previous prime is 550421299. The next prime is 550421327. The reversal of 550421303 is 303124055.

550421303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 550421303 - 2² = 550421299 is a prime.

It is a super-2 number, since 2×550421303² = 605927221592435618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550421353) 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, 34100 + ... + 47577.

It is an arithmetic number, because the mean of its divisors is an integer number (72039996).

Almost surely, 2^550421303 is an apocalyptic number.

550421303 is a deficient number, since it is larger than the sum of its proper divisors (25898665).

550421303 is a wasteful number, since it uses less digits than its factorization.

550421303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81993.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 550421303 is about 23461.0592898104. The cubic root of 550421303 is about 819.5304187276.

Adding to 550421303 its reverse (303124055), we get a palindrome (853545358).

The spelling of 550421303 in words is "five hundred fifty million, four hundred twenty-one thousand, three hundred three".