2530521502513 has 2 divisors, whose sum is σ = 2530521502514. Its totient is φ = 2530521502512.

The previous prime is 2530521502499. The next prime is 2530521502547. The reversal of 2530521502513 is 3152051250352.

It is an a-pointer prime, because the next prime (2530521502547) can be obtained adding 2530521502513 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2479906851984 + 50614650529 = 1574772^2 + 224977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530521502513 - 2²¹ = 2530519405361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530521502573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265260751256 + 1265260751257.

It is an arithmetic number, because the mean of its divisors is an integer number (1265260751257).

Almost surely, 2^{2530521502513} is an apocalyptic number.

It is an amenable number.

2530521502513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530521502513 is an equidigital number, since it uses as much as digits as its factorization.

2530521502513 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 2530521502513 its reverse (3152051250352), we get a palindrome (5682572752865).

The spelling of 2530521502513 in words is "two trillion, five hundred thirty billion, five hundred twenty-one million, five hundred two thousand, five hundred thirteen".