2540703065 has 16 divisors (see below), whose sum is σ = 3066336000. Its totient is φ = 2020927872.

The previous prime is 2540703049. The next prime is 2540703083. The reversal of 2540703065 is 5603070452.

It is a cyclic number.

It is not a de Polignac number, because 2540703065 - 2⁴ = 2540703049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209386 + ... + 1211484.

It is an arithmetic number, because the mean of its divisors is an integer number (191646000).

Almost surely, 2^2540703065 is an apocalyptic number.

It is an amenable number.

2540703065 is a deficient number, since it is larger than the sum of its proper divisors (525632935).

2540703065 is a wasteful number, since it uses less digits than its factorization.

2540703065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 2540703065 is about 50405.3872616807. The cubic root of 2540703065 is about 1364.5348663653.

The spelling of 2540703065 in words is "two billion, five hundred forty million, seven hundred three thousand, sixty-five".