530550 has 60 divisors (see below), whose sum is σ = 1485396. Its totient is φ = 140400.

The previous prime is 530549. The next prime is 530567. The reversal of 530550 is 55035.

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

It is a Curzon number.

It is a nialpdrome in base 9 and base 15.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3985 + ... + 4115.

2⁵³⁰⁵⁵⁰ is an apocalyptic number.

530550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 530550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742698).

530550 is an abundant number, since it is smaller than the sum of its proper divisors (954846).

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

530550 is a wasteful number, since it uses less digits than its factorization.

530550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 141 counting only the distinct ones).

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

The square root of 530550 is about 728.3886325307. The cubic root of 530550 is about 80.9547071886.

Adding to 530550 its reverse (55035), we get a palindrome (585585).

The spelling of 530550 in words is "five hundred thirty thousand, five hundred fifty".