2509284109 has 4 divisors (see below), whose sum is σ = 2510464860. Its totient is φ = 2508103360.

The previous prime is 2509283921. The next prime is 2509284143. The reversal of 2509284109 is 9014829052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1380122500 + 1129161609 = 37150^2 + 33603^2 .

It is a cyclic number.

It is not a de Polignac number, because 2509284109 - 2²⁵ = 2475729677 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509284409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587182 + ... + 591439.

It is an arithmetic number, because the mean of its divisors is an integer number (627616215).

Almost surely, 2^2509284109 is an apocalyptic number.

It is an amenable number.

2509284109 is a deficient number, since it is larger than the sum of its proper divisors (1180751).

2509284109 is a wasteful number, since it uses less digits than its factorization.

2509284109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180750.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2509284109 is about 50092.7550549977. The cubic root of 2509284109 is about 1358.8867961271.

The spelling of 2509284109 in words is "two billion, five hundred nine million, two hundred eighty-four thousand, one hundred nine".