549128528 has 20 divisors (see below), whose sum is σ = 1145778228. Its totient is φ = 253443840.

The previous prime is 549128501. The next prime is 549128549. The reversal of 549128528 is 825821945.

It can be written as a sum of positive squares in 2 ways, for example, as 253701184 + 295427344 = 15928^2 + 17188^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1319813 + ... + 1320228.

Almost surely, 2^549128528 is an apocalyptic number.

It is an amenable number.

549128528 is an abundant number, since it is smaller than the sum of its proper divisors (596649700).

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

549128528 is a wasteful number, since it uses less digits than its factorization.

549128528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640062 (or 2640056 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The square root of 549128528 is about 23433.4915878962. The cubic root of 549128528 is about 818.8883051482. Note that the first 3 decimals are identical.

The spelling of 549128528 in words is "five hundred forty-nine million, one hundred twenty-eight thousand, five hundred twenty-eight".