2530802509 has 2 divisors, whose sum is σ = 2530802510. Its totient is φ = 2530802508.

The previous prime is 2530802473. The next prime is 2530802557. The reversal of 2530802509 is 9052080352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1808375625 + 722426884 = 42525^2 + 26878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530802509 - 2¹⁹ = 2530278221 is a prime.

It is a super-2 number, since 2×2530802509² = 12809922679121390162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530802569) 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, 1265401254 + 1265401255.

It is an arithmetic number, because the mean of its divisors is an integer number (1265401255).

Almost surely, 2^2530802509 is an apocalyptic number.

It is an amenable number.

2530802509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530802509 is an equidigital number, since it uses as much as digits as its factorization.

2530802509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2530802509 is about 50307.0820958640. The cubic root of 2530802509 is about 1362.7601292628.

The spelling of 2530802509 in words is "two billion, five hundred thirty million, eight hundred two thousand, five hundred nine".