530551 has 4 divisors (see below), whose sum is σ = 606352. Its totient is φ = 454752.

The previous prime is 530549. The next prime is 530567. The reversal of 530551 is 155035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530551 - 2¹ = 530549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37890 + ... + 37903.

It is an arithmetic number, because the mean of its divisors is an integer number (151588).

2⁵³⁰⁵⁵¹ is an apocalyptic number.

530551 is a deficient number, since it is larger than the sum of its proper divisors (75801).

530551 is an equidigital number, since it uses as much as digits as its factorization.

530551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75800.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 530551 is about 728.3893189772. The cubic root of 530551 is about 80.9547580507.

Adding to 530551 its reverse (155035), we get a palindrome (685586).

It can be divided in two parts, 5305 and 51, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 530551 in words is "five hundred thirty thousand, five hundred fifty-one".