2530521501523 has 2 divisors, whose sum is σ = 2530521501524. Its totient is φ = 2530521501522.

The previous prime is 2530521501511. The next prime is 2530521501527. The reversal of 2530521501523 is 3251051250352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2530521501523 - 2⁵ = 2530521501491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530521501527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265260750761 + 1265260750762.

It is an arithmetic number, because the mean of its divisors is an integer number (1265260750762).

Almost surely, 2^{2530521501523} is an apocalyptic number.

2530521501523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530521501523 is an equidigital number, since it uses as much as digits as its factorization.

2530521501523 is an evil number, because the sum of its binary digits is even.

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

Adding to 2530521501523 its reverse (3251051250352), we get a palindrome (5781572751875).

The spelling of 2530521501523 in words is "two trillion, five hundred thirty billion, five hundred twenty-one million, five hundred one thousand, five hundred twenty-three".