652565 has 4 divisors (see below), whose sum is σ = 783084. Its totient is φ = 522048.

The previous prime is 652559. The next prime is 652567. The reversal of 652565 is 565256.

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 358801 + 293764 = 599^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 652565 - 2⁴ = 652549 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652565.

It is not an unprimeable number, because it can be changed into a prime (652567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65252 + ... + 65261.

It is an arithmetic number, because the mean of its divisors is an integer number (195771).

2⁶⁵²⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

652565 is a deficient number, since it is larger than the sum of its proper divisors (130519).

652565 is a wasteful number, since it uses less digits than its factorization.

652565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130518.

The product of its digits is 9000, while the sum is 29.

The square root of 652565 is about 807.8149540582. The cubic root of 652565 is about 86.7377047412.

The spelling of 652565 in words is "six hundred fifty-two thousand, five hundred sixty-five".