2530510235521 has 2 divisors, whose sum is σ = 2530510235522. Its totient is φ = 2530510235520.

The previous prime is 2530510235509. The next prime is 2530510235549. The reversal of 2530510235521 is 1255320150352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2468590880625 + 61919354896 = 1571175^2 + 248836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530510235521 - 2⁵ = 2530510235489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530510235021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265255117760 + 1265255117761.

It is an arithmetic number, because the mean of its divisors is an integer number (1265255117761).

Almost surely, 2^{2530510235521} is an apocalyptic number.

It is an amenable number.

2530510235521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530510235521 is an equidigital number, since it uses as much as digits as its factorization.

2530510235521 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 2530510235521 its reverse (1255320150352), we get a palindrome (3785830385873).

The spelling of 2530510235521 in words is "two trillion, five hundred thirty billion, five hundred ten million, two hundred thirty-five thousand, five hundred twenty-one".