2505053209 has 2 divisors, whose sum is σ = 2505053210. Its totient is φ = 2505053208.

The previous prime is 2505053197. The next prime is 2505053281. The reversal of 2505053209 is 9023505052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2263095184 + 241958025 = 47572^2 + 15555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505053209 - 2¹¹ = 2505051161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505050209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252526604 + 1252526605.

It is an arithmetic number, because the mean of its divisors is an integer number (1252526605).

Almost surely, 2^2505053209 is an apocalyptic number.

It is an amenable number.

2505053209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505053209 is an equidigital number, since it uses as much as digits as its factorization.

2505053209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 2505053209 is about 50050.5065808529. The cubic root of 2505053209 is about 1358.1226275131.

The spelling of 2505053209 in words is "two billion, five hundred five million, fifty-three thousand, two hundred nine".