530247521 has 8 divisors (see below), whose sum is σ = 535559904. Its totient is φ = 524954560.

The previous prime is 530247499. The next prime is 530247541. The reversal of 530247521 is 125742035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530247521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (530247541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53465 + ... + 62601.

It is an arithmetic number, because the mean of its divisors is an integer number (66944988).

Almost surely, 2^530247521 is an apocalyptic number.

It is an amenable number.

530247521 is a deficient number, since it is larger than the sum of its proper divisors (5312383).

530247521 is a wasteful number, since it uses less digits than its factorization.

530247521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 530247521 is about 23027.1040515302. The cubic root of 530247521 is about 809.3931953811.

Adding to 530247521 its reverse (125742035), we get a palindrome (655989556).

The spelling of 530247521 in words is "five hundred thirty million, two hundred forty-seven thousand, five hundred twenty-one".