2500008945 has 64 divisors (see below), whose sum is σ = 4749373440. Its totient is φ = 1098720000.

The previous prime is 2500008869. The next prime is 2500008971. The reversal of 2500008945 is 5498000052.

It is not a de Polignac number, because 2500008945 - 2⁷ = 2500008817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 762660 + ... + 765930.

It is an arithmetic number, because the mean of its divisors is an integer number (74208960).

Almost surely, 2^2500008945 is an apocalyptic number.

It is an amenable number.

2500008945 is a deficient number, since it is larger than the sum of its proper divisors (2249364495).

2500008945 is a wasteful number, since it uses less digits than its factorization.

2500008945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2500008945 is about 50000.0894499200. The cubic root of 2500008945 is about 1357.2104269932.

Adding to 2500008945 its reverse (5498000052), we get a palindrome (7998008997).

The spelling of 2500008945 in words is "two billion, five hundred million, eight thousand, nine hundred forty-five".