549820423 has 8 divisors (see below), whose sum is σ = 579708720. Its totient is φ = 520027200.

The previous prime is 549820421. The next prime is 549820529. The reversal of 549820423 is 324028945.

It is a happy number.

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 549820423 - 2¹ = 549820421 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 (549820421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11728 + ... + 35173.

It is an arithmetic number, because the mean of its divisors is an integer number (72463590).

Almost surely, 2^549820423 is an apocalyptic number.

549820423 is a deficient number, since it is larger than the sum of its proper divisors (29888297).

549820423 is a wasteful number, since it uses less digits than its factorization.

549820423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47537.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 549820423 is about 23448.2498920495. The cubic root of 549820423 is about 819.2320904360.

It can be divided in two parts, 5498 and 20423, that added together give a square (25921 = 161²).

The spelling of 549820423 in words is "five hundred forty-nine million, eight hundred twenty thousand, four hundred twenty-three".