550305431 has 8 divisors (see below), whose sum is σ = 595250544. Its totient is φ = 505733760.

The previous prime is 550305407. The next prime is 550305433. The reversal of 550305431 is 134503055.

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 550305431 - 2¹⁸ = 550043287 is a prime.

It is a super-2 number, since 2×550305431² = 605672134776191522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550305431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550305433) 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 7 ways as a sum of consecutive naturals, for example, 90290 + ... + 96191.

It is an arithmetic number, because the mean of its divisors is an integer number (74406318).

Almost surely, 2^550305431 is an apocalyptic number.

550305431 is a deficient number, since it is larger than the sum of its proper divisors (44945113).

550305431 is a wasteful number, since it uses less digits than its factorization.

550305431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186721.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 550305431 is about 23458.5897061183. The cubic root of 550305431 is about 819.4729068469.

Adding to 550305431 its reverse (134503055), we get a palindrome (684808486).

The spelling of 550305431 in words is "five hundred fifty million, three hundred five thousand, four hundred thirty-one".