530342105521 has 4 divisors (see below), whose sum is σ = 530378166052. Its totient is φ = 530306044992.

The previous prime is 530342105507. The next prime is 530342105533. The reversal of 530342105521 is 125501243035.

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 345902778225 + 184439327296 = 588135^2 + 429464^2 .

It is a cyclic number.

It is not a de Polignac number, because 530342105521 - 2²¹ = 530340008369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530342105551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18008196 + ... + 18037621.

It is an arithmetic number, because the mean of its divisors is an integer number (132594541513).

Almost surely, 2^530342105521 is an apocalyptic number.

It is an amenable number.

530342105521 is a deficient number, since it is larger than the sum of its proper divisors (36060531).

530342105521 is a wasteful number, since it uses less digits than its factorization.

530342105521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36060530.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 530342105521 its reverse (125501243035), we get a palindrome (655843348556).

The spelling of 530342105521 in words is "five hundred thirty billion, three hundred forty-two million, one hundred five thousand, five hundred twenty-one".