2500649265 has 16 divisors (see below), whose sum is σ = 4139006400. Its totient is φ = 1287690432.

The previous prime is 2500649257. The next prime is 2500649267. The reversal of 2500649265 is 5629460052.

It is not a de Polignac number, because 2500649265 - 2³ = 2500649257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2500649267) 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 15 ways as a sum of consecutive naturals, for example, 2873875 + ... + 2874744.

It is an arithmetic number, because the mean of its divisors is an integer number (258687900).

Almost surely, 2^2500649265 is an apocalyptic number.

It is an amenable number.

2500649265 is a deficient number, since it is larger than the sum of its proper divisors (1638357135).

2500649265 is a wasteful number, since it uses less digits than its factorization.

2500649265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748656.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2500649265 is about 50006.4922285097. The cubic root of 2500649265 is about 1357.3262898847.

The spelling of 2500649265 in words is "two billion, five hundred million, six hundred forty-nine thousand, two hundred sixty-five".