549321020 has 24 divisors (see below), whose sum is σ = 1160928384. Its totient is φ = 218327616.

The previous prime is 549321013. The next prime is 549321037. The reversal of 549321020 is 20123945.

It is a congruent number.

It is an unprimeable number.

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, 84332 + ... + 90611.

It is an arithmetic number, because the mean of its divisors is an integer number (48372016).

Almost surely, 2^549321020 is an apocalyptic number.

It is an amenable number.

549321020 is an abundant number, since it is smaller than the sum of its proper divisors (611607364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549321020 is a wasteful number, since it uses less digits than its factorization.

549321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175109 (or 175107 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 549321020 is about 23437.5984264600. The cubic root of 549321020 is about 818.9839785802.

Adding to 549321020 its reverse (20123945), we get a palindrome (569444965).

The spelling of 549321020 in words is "five hundred forty-nine million, three hundred twenty-one thousand, twenty".