5531328 has 140 divisors (see below), whose sum is σ = 18071592. Its totient is φ = 1658880.

The previous prime is 5531321. The next prime is 5531347. The reversal of 5531328 is 8231355.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5531321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56976 + ... + 57072.

Almost surely, 2^5531328 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 5531328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9035796).

5531328 is an abundant number, since it is smaller than the sum of its proper divisors (12540264).

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

5531328 is a wasteful number, since it uses less digits than its factorization.

5531328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 113 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5531328 is about 2351.8775478328. The cubic root of 5531328 is about 176.8519301738.

Adding to 5531328 its sum of digits (27), we get a palindrome (5531355).

It can be divided in two parts, 553 and 1328, that added together give a palindrome (1881).

The spelling of 5531328 in words is "five million, five hundred thirty-one thousand, three hundred twenty-eight".