2505262913 has 2 divisors, whose sum is σ = 2505262914. Its totient is φ = 2505262912.

The previous prime is 2505262909. The next prime is 2505262927. The reversal of 2505262913 is 3192625052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1528575409 + 976687504 = 39097^2 + 31252^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505262913 - 2² = 2505262909 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505262943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252631456 + 1252631457.

It is an arithmetic number, because the mean of its divisors is an integer number (1252631457).

Almost surely, 2^2505262913 is an apocalyptic number.

It is an amenable number.

2505262913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505262913 is an equidigital number, since it uses as much as digits as its factorization.

2505262913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2505262913 is about 50052.6014608632. The cubic root of 2505262913 is about 1358.1605236876.

Adding to 2505262913 its reverse (3192625052), we get a palindrome (5697887965).

The spelling of 2505262913 in words is "two billion, five hundred five million, two hundred sixty-two thousand, nine hundred thirteen".