5218782065 has 16 divisors (see below), whose sum is σ = 7185048192. Its totient is φ = 3564662784.

The previous prime is 5218782059. The next prime is 5218782071. The reversal of 5218782065 is 5602878125.

It is an interprime number because it is at equal distance from previous prime (5218782059) and next prime (5218782071).

It is a cyclic number.

It is not a de Polignac number, because 5218782065 - 2⁶ = 5218782001 is a prime.

It is a Curzon number.

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, 281099 + ... + 299088.

It is an arithmetic number, because the mean of its divisors is an integer number (449065512).

Almost surely, 2^5218782065 is an apocalyptic number.

It is an amenable number.

5218782065 is a deficient number, since it is larger than the sum of its proper divisors (1966266127).

5218782065 is a wasteful number, since it uses less digits than its factorization.

5218782065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580456.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 5218782065 is about 72241.1383146750. The cubic root of 5218782065 is about 1734.5615709323.

The spelling of 5218782065 in words is "five billion, two hundred eighteen million, seven hundred eighty-two thousand, sixty-five".