852585565 has 24 divisors (see below), whose sum is σ = 1117785960. Its totient is φ = 623960064.

The previous prime is 852585563. The next prime is 852585583. The reversal of 852585565 is 565585258.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 844890489 + 7695076 = 29067^2 + 2774^2 .

It is not a de Polignac number, because 852585565 - 2¹ = 852585563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852585563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91021 + ... + 99949.

It is an arithmetic number, because the mean of its divisors is an integer number (46574415).

Almost surely, 2^852585565 is an apocalyptic number.

It is an amenable number.

852585565 is a deficient number, since it is larger than the sum of its proper divisors (265200395).

852585565 is a wasteful number, since it uses less digits than its factorization.

852585565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073 (or 9060 counting only the distinct ones).

The product of its digits is 2400000, while the sum is 49.

The square root of 852585565 is about 29199.0678789581. The cubic root of 852585565 is about 948.2277447956.

The spelling of 852585565 in words is "eight hundred fifty-two million, five hundred eighty-five thousand, five hundred sixty-five".