553449820 has 96 divisors (see below), whose sum is σ = 1495904256. Its totient is φ = 166924800.

The previous prime is 553449817. The next prime is 553449821. The reversal of 553449820 is 28944355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553449821) 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 31 ways as a sum of consecutive naturals, for example, 41944 + ... + 53536.

It is an arithmetic number, because the mean of its divisors is an integer number (15582336).

Almost surely, 2^553449820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553449820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747952128).

553449820 is an abundant number, since it is smaller than the sum of its proper divisors (942454436).

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

553449820 is a wasteful number, since it uses less digits than its factorization.

553449820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651 (or 11649 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 553449820 is about 23525.5142345497. The cubic root of 553449820 is about 821.0307383244.

The spelling of 553449820 in words is "five hundred fifty-three million, four hundred forty-nine thousand, eight hundred twenty".