530240665 has 4 divisors (see below), whose sum is σ = 636288804. Its totient is φ = 424192528.

The previous prime is 530240651. The next prime is 530240671. The reversal of 530240665 is 566042035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 124902976 + 405337689 = 11176^2 + 20133^2 .

It is a cyclic number.

It is not a de Polignac number, because 530240665 - 2¹¹ = 530238617 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53024062 + ... + 53024071.

It is an arithmetic number, because the mean of its divisors is an integer number (159072201).

Almost surely, 2^530240665 is an apocalyptic number.

It is an amenable number.

530240665 is a deficient number, since it is larger than the sum of its proper divisors (106048139).

530240665 is a wasteful number, since it uses less digits than its factorization.

530240665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106048138.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 530240665 is about 23026.9551830024. The cubic root of 530240665 is about 809.3897069325.

The spelling of 530240665 in words is "five hundred thirty million, two hundred forty thousand, six hundred sixty-five".