2516303209 has 48 divisors (see below), whose sum is σ = 3149193600. Its totient is φ = 1967950080.

The previous prime is 2516303183. The next prime is 2516303221. The reversal of 2516303209 is 9023036152.

It is not a de Polignac number, because 2516303209 - 2¹⁵ = 2516270441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2516303299) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15437362 + ... + 15437524.

It is an arithmetic number, because the mean of its divisors is an integer number (65608200).

Almost surely, 2^2516303209 is an apocalyptic number.

It is an amenable number.

2516303209 is a deficient number, since it is larger than the sum of its proper divisors (632890391).

2516303209 is a wasteful number, since it uses less digits than its factorization.

2516303209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2516303209 is about 50162.7671585211. The cubic root of 2516303209 is about 1360.1526661448.

The spelling of 2516303209 in words is "two billion, five hundred sixteen million, three hundred three thousand, two hundred nine".