652570665 has 16 divisors (see below), whose sum is σ = 1072333248. Its totient is φ = 338630976.

The previous prime is 652570649. The next prime is 652570669. The reversal of 652570665 is 566075256.

It is a happy number.

It is not a de Polignac number, because 652570665 - 2⁴ = 652570649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (652570669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587347 + ... + 588456.

It is an arithmetic number, because the mean of its divisors is an integer number (67020828).

Almost surely, 2^652570665 is an apocalyptic number.

It is an amenable number.

652570665 is a deficient number, since it is larger than the sum of its proper divisors (419762583).

652570665 is a wasteful number, since it uses less digits than its factorization.

652570665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175848.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 652570665 is about 25545.4627086690. The cubic root of 652570665 is about 867.3795573415.

The spelling of 652570665 in words is "six hundred fifty-two million, five hundred seventy thousand, six hundred sixty-five".