553500 has 96 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 144000.

The previous prime is 553481. The next prime is 553507. The reversal of 553500 is 5355.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553507) by changing a digit.

553500 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13480 + ... + 13520.

It is an arithmetic number, because the mean of its divisors is an integer number (19110).

2⁵⁵³⁵⁰⁰ is an apocalyptic number.

553500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917280).

553500 is an abundant number, since it is smaller than the sum of its proper divisors (1281060).

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

553500 is a wasteful number, since it uses less digits than its factorization.

553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 553500 is about 743.9758060582. The cubic root of 553500 is about 82.1055551220.

Adding to 553500 its reverse (5355), we get a palindrome (558855).

The spelling of 553500 in words is "five hundred fifty-three thousand, five hundred".