553128 has 32 divisors (see below), whose sum is σ = 1456800. Its totient is φ = 174528.

The previous prime is 553123. The next prime is 553139. The reversal of 553128 is 821355.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 553098 and 553107.

It is not an unprimeable number, because it can be changed into a prime (553123) by changing a digit.

553128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (45525).

2⁵⁵³¹²⁸ is an apocalyptic number.

It is an amenable number.

553128 is an abundant number, since it is smaller than the sum of its proper divisors (903672).

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

553128 is a wasteful number, since it uses less digits than its factorization.

553128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1237 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 553128 is about 743.7257559074. The cubic root of 553128 is about 82.0871569819.

The spelling of 553128 in words is "five hundred fifty-three thousand, one hundred twenty-eight".