2500664265 has 32 divisors (see below), whose sum is σ = 4849776000. Its totient is φ = 1212442560.

The previous prime is 2500664261. The next prime is 2500664267. The reversal of 2500664265 is 5624660052.

2500664265 is a `hidden beast` number, since 2 + 5 + 0 + 0 + 6 + 642 + 6 + 5 = 666.

It is not a de Polignac number, because 2500664265 - 2² = 2500664261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2500664261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 840490 + ... + 843459.

It is an arithmetic number, because the mean of its divisors is an integer number (151555500).

Almost surely, 2^2500664265 is an apocalyptic number.

It is an amenable number.

2500664265 is a deficient number, since it is larger than the sum of its proper divisors (2349111735).

2500664265 is a wasteful number, since it uses less digits than its factorization.

2500664265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683974 (or 1683968 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2500664265 is about 50006.6422088106. The cubic root of 2500664265 is about 1357.3290038271.

The spelling of 2500664265 in words is "two billion, five hundred million, six hundred sixty-four thousand, two hundred sixty-five".