52536565 has 4 divisors (see below), whose sum is σ = 63043884. Its totient is φ = 42029248.

The previous prime is 52536563. The next prime is 52536569. The reversal of 52536565 is 56563525.

52536565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15069924 + 37466641 = 3882^2 + 6121^2 .

It is a cyclic number.

It is not a de Polignac number, because 52536565 - 2¹ = 52536563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52536563) 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 3 ways as a sum of consecutive naturals, for example, 5253652 + ... + 5253661.

It is an arithmetic number, because the mean of its divisors is an integer number (15760971).

Almost surely, 2^52536565 is an apocalyptic number.

It is an amenable number.

52536565 is a deficient number, since it is larger than the sum of its proper divisors (10507319).

52536565 is a wasteful number, since it uses less digits than its factorization.

52536565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507318.

The product of its digits is 135000, while the sum is 37.

The square root of 52536565 is about 7248.2111586239. The cubic root of 52536565 is about 374.5305295423.

It can be divided in two parts, 5253656 and 5, that added together give a triangular number (5253661 = T₃₂₄₁).

The spelling of 52536565 in words is "fifty-two million, five hundred thirty-six thousand, five hundred sixty-five".