852666257 has 8 divisors (see below), whose sum is σ = 856215360. Its totient is φ = 849125200.

The previous prime is 852666233. The next prime is 852666271. The reversal of 852666257 is 752666258.

852666257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 852666257 - 2²⁰ = 851617681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852666457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292268 + ... + 295170.

It is an arithmetic number, because the mean of its divisors is an integer number (107026920).

Almost surely, 2^852666257 is an apocalyptic number.

It is an amenable number.

852666257 is a deficient number, since it is larger than the sum of its proper divisors (3549103).

852666257 is a wasteful number, since it uses less digits than its factorization.

852666257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023.

The product of its digits is 1209600, while the sum is 47.

The square root of 852666257 is about 29200.4496027030. The cubic root of 852666257 is about 948.2576585007.

Subtracting from 852666257 its reverse (752666258), we obtain a palindrome (99999999).

The spelling of 852666257 in words is "eight hundred fifty-two million, six hundred sixty-six thousand, two hundred fifty-seven".