2505530611 has 2 divisors, whose sum is σ = 2505530612. Its totient is φ = 2505530610.

The previous prime is 2505530597. The next prime is 2505530647. The reversal of 2505530611 is 1160355052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2505530611 - 2¹¹ = 2505528563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505530611.

It is not a weakly prime, because it can be changed into another prime (2505530681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252765305 + 1252765306.

It is an arithmetic number, because the mean of its divisors is an integer number (1252765306).

Almost surely, 2^2505530611 is an apocalyptic number.

2505530611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505530611 is an equidigital number, since it uses as much as digits as its factorization.

2505530611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 2505530611 is about 50055.2755561289. The cubic root of 2505530611 is about 1358.2088970413.

Adding to 2505530611 its reverse (1160355052), we get a palindrome (3665885663).

The spelling of 2505530611 in words is "two billion, five hundred five million, five hundred thirty thousand, six hundred eleven".