530521521523 has 6 divisors (see below), whose sum is σ = 617137280196. Its totient is φ = 454732732692.

The previous prime is 530521521521. The next prime is 530521521583. The reversal of 530521521523 is 325125125035.

It is not a de Polignac number, because 530521521523 - 2¹ = 530521521521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530521521521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5413484865 + ... + 5413484962.

It is an arithmetic number, because the mean of its divisors is an integer number (102856213366).

Almost surely, 2^530521521523 is an apocalyptic number.

530521521523 is a deficient number, since it is larger than the sum of its proper divisors (86615758673).

530521521523 is a wasteful number, since it uses less digits than its factorization.

530521521523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826969841 (or 10826969834 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 530521521523 its reverse (325125125035), we get a palindrome (855646646558).

The spelling of 530521521523 in words is "five hundred thirty billion, five hundred twenty-one million, five hundred twenty-one thousand, five hundred twenty-three".