530243253 has 28 divisors (see below), whose sum is σ = 802415020. Its totient is φ = 350199936.

The previous prime is 530243227. The next prime is 530243267. The reversal of 530243253 is 352342035.

It can be written as a sum of positive squares in 2 ways, for example, as 163788804 + 366454449 = 12798^2 + 19143^2 .

It is not a de Polignac number, because 530243253 - 2¹³ = 530235061 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530243053) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 76125 + ... + 82797.

Almost surely, 2^530243253 is an apocalyptic number.

It is an amenable number.

530243253 is a deficient number, since it is larger than the sum of its proper divisors (272171767).

530243253 is an equidigital number, since it uses as much as digits as its factorization.

530243253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800 (or 6785 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 530243253 is about 23027.0113779448. The cubic root of 530243253 is about 809.3910237542.

Adding to 530243253 its reverse (352342035), we get a palindrome (882585288).

The spelling of 530243253 in words is "five hundred thirty million, two hundred forty-three thousand, two hundred fifty-three".