65015705 has 8 divisors (see below), whose sum is σ = 78823752. Its totient is φ = 51475968.

The previous prime is 65015689. The next prime is 65015707. The reversal of 65015705 is 50751056.

65015705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 502681 + 64513024 = 709^2 + 8032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65015705 - 2⁴ = 65015689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65015707) 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 7 ways as a sum of consecutive naturals, for example, 66542 + ... + 67511.

It is an arithmetic number, because the mean of its divisors is an integer number (9852969).

Almost surely, 2^65015705 is an apocalyptic number.

It is an amenable number.

65015705 is a deficient number, since it is larger than the sum of its proper divisors (13808047).

65015705 is a wasteful number, since it uses less digits than its factorization.

65015705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134155.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 65015705 is about 8063.2316722267. The cubic root of 65015705 is about 402.1049555579.

The spelling of 65015705 in words is "sixty-five million, fifteen thousand, seven hundred five".