Search a number
-
+
52565 = 510513
BaseRepresentation
bin1100110101010101
32200002212
430311111
53140230
61043205
7306152
oct146525
980085
1052565
1136547
1226505
131ac06
1415229
1510895
hexcd55

52565 has 4 divisors (see below), whose sum is σ = 63084. Its totient is φ = 42048.

The previous prime is 52561. The next prime is 52567. The reversal of 52565 is 56525.

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 5476 + 47089 = 74^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 52565 - 22 = 52561 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561) 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, 5252 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (15771).

252565 is an apocalyptic number.

It is an amenable number.

52565 is a deficient number, since it is larger than the sum of its proper divisors (10519).

52565 is a wasteful number, since it uses less digits than its factorization.

52565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518.

The product of its digits is 1500, while the sum is 23.

The square root of 52565 is about 229.2705825002. The cubic root of 52565 is about 37.4598087917.

The spelling of 52565 in words is "fifty-two thousand, five hundred sixty-five".

Divisors: 1 5 10513 52565