852666259 has 4 divisors (see below), whose sum is σ = 852725016. Its totient is φ = 852607504.

The previous prime is 852666233. The next prime is 852666271. The reversal of 852666259 is 952666258.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-852666259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852666209) 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, 9852 + ... + 42454.

It is an arithmetic number, because the mean of its divisors is an integer number (213181254).

Almost surely, 2^852666259 is an apocalyptic number.

852666259 is a deficient number, since it is larger than the sum of its proper divisors (58757).

852666259 is a wasteful number, since it uses less digits than its factorization.

852666259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58756.

The product of its digits is 1555200, while the sum is 49.

The square root of 852666259 is about 29200.4496369491. The cubic root of 852666259 is about 948.2576592421.

Subtracting 852666259 from its reverse (952666258), we obtain a palindrome (99999999).

The spelling of 852666259 in words is "eight hundred fifty-two million, six hundred sixty-six thousand, two hundred fifty-nine".