2539000065 has 32 divisors (see below), whose sum is σ = 4915848960. Its totient is φ = 1092409344.

The previous prime is 2539000049. The next prime is 2539000091. The reversal of 2539000065 is 5600009352.

It is not a de Polignac number, because 2539000065 - 2⁴ = 2539000049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2538999996 and 2539000041.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709420 + ... + 712989.

It is an arithmetic number, because the mean of its divisors is an integer number (153620280).

Almost surely, 2^2539000065 is an apocalyptic number.

It is an amenable number.

2539000065 is a deficient number, since it is larger than the sum of its proper divisors (2376848895).

2539000065 is a wasteful number, since it uses less digits than its factorization.

2539000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422441.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 2539000065 is about 50388.4913943650. The cubic root of 2539000065 is about 1364.2299216031.

The spelling of 2539000065 in words is "two billion, five hundred thirty-nine million, sixty-five", and thus it is an aban number.