2505530647 has 2 divisors, whose sum is σ = 2505530648. Its totient is φ = 2505530646.

The previous prime is 2505530611. The next prime is 2505530659. The reversal of 2505530647 is 7460355052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505530647 - 2¹⁵ = 2505497879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505530947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252765323 + 1252765324.

It is an arithmetic number, because the mean of its divisors is an integer number (1252765324).

Almost surely, 2^2505530647 is an apocalyptic number.

2505530647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505530647 is an equidigital number, since it uses as much as digits as its factorization.

2505530647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 2505530647 is about 50055.2759157314. The cubic root of 2505530647 is about 1358.2089035463.

Adding to 2505530647 its reverse (7460355052), we get a palindrome (9965885699).

The spelling of 2505530647 in words is "two billion, five hundred five million, five hundred thirty thousand, six hundred forty-seven".