857168225 has 36 divisors (see below), whose sum is σ = 1121081520. Its totient is φ = 649924800.

The previous prime is 857168219. The next prime is 857168267. The reversal of 857168225 is 522861758.

857168225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 857168225 - 2¹² = 857164129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1240130 + ... + 1240820.

Almost surely, 2^857168225 is an apocalyptic number.

It is an amenable number.

857168225 is a deficient number, since it is larger than the sum of its proper divisors (263913295).

857168225 is a wasteful number, since it uses less digits than its factorization.

857168225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 784 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 857168225 is about 29277.4354238892. The cubic root of 857168225 is about 949.9236226685.

The spelling of 857168225 in words is "eight hundred fifty-seven million, one hundred sixty-eight thousand, two hundred twenty-five".