2505830816 has 12 divisors (see below), whose sum is σ = 4933354482. Its totient is φ = 1252915392.

The previous prime is 2505830807. The next prime is 2505830837. The reversal of 2505830816 is 6180385052.

2505830816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2078995216 + 426835600 = 45596^2 + 20660^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2505830816.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39153575 + ... + 39153638.

Almost surely, 2^2505830816 is an apocalyptic number.

It is an amenable number.

2505830816 is a deficient number, since it is larger than the sum of its proper divisors (2427523666).

2505830816 is an equidigital number, since it uses as much as digits as its factorization.

2505830816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78307223 (or 78307215 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2505830816 is about 50058.2742011748. The cubic root of 2505830816 is about 1358.2631403509.

The spelling of 2505830816 in words is "two billion, five hundred five million, eight hundred thirty thousand, eight hundred sixteen".