2505830305 has 8 divisors (see below), whose sum is σ = 3280359744. Its totient is φ = 1822422000.

The previous prime is 2505830293. The next prime is 2505830387. The reversal of 2505830305 is 5030385052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2505830305 - 2⁵ = 2505830273 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 22780221 + ... + 22780330.

It is an arithmetic number, because the mean of its divisors is an integer number (410044968).

Almost surely, 2^2505830305 is an apocalyptic number.

It is an amenable number.

2505830305 is a deficient number, since it is larger than the sum of its proper divisors (774529439).

2505830305 is a wasteful number, since it uses less digits than its factorization.

2505830305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45560567.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2505830305 is about 50058.2690971232. The cubic root of 2505830305 is about 1358.2630480233.

The spelling of 2505830305 in words is "two billion, five hundred five million, eight hundred thirty thousand, three hundred five".