530245312521 has 4 divisors (see below), whose sum is σ = 706993750032. Its totient is φ = 353496875012.

The previous prime is 530245312477. The next prime is 530245312523. The reversal of 530245312521 is 125213542035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530245312521 - 2¹¹ = 530245310473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530245312523) 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, 88374218751 + ... + 88374218756.

It is an arithmetic number, because the mean of its divisors is an integer number (176748437508).

Almost surely, 2^530245312521 is an apocalyptic number.

It is an amenable number.

530245312521 is a deficient number, since it is larger than the sum of its proper divisors (176748437511).

530245312521 is a wasteful number, since it uses less digits than its factorization.

530245312521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176748437510.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 530245312521 its reverse (125213542035), we get a palindrome (655458854556).

The spelling of 530245312521 in words is "five hundred thirty billion, two hundred forty-five million, three hundred twelve thousand, five hundred twenty-one".