65707585 has 4 divisors (see below), whose sum is σ = 78849108. Its totient is φ = 52566064.

The previous prime is 65707583. The next prime is 65707613. The reversal of 65707585 is 58570756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18386944 + 47320641 = 4288^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 65707585 - 2¹ = 65707583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65707583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6570754 + ... + 6570763.

It is an arithmetic number, because the mean of its divisors is an integer number (19712277).

Almost surely, 2^65707585 is an apocalyptic number.

It is an amenable number.

65707585 is a deficient number, since it is larger than the sum of its proper divisors (13141523).

65707585 is a wasteful number, since it uses less digits than its factorization.

65707585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141522.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 65707585 is about 8106.0215272352. The cubic root of 65707585 is about 403.5262905858.

The spelling of 65707585 in words is "sixty-five million, seven hundred seven thousand, five hundred eighty-five".