853699225 has 12 divisors (see below), whose sum is σ = 1065696300. Its totient is φ = 678372800.

The previous prime is 853699213. The next prime is 853699229. The reversal of 853699225 is 522996358.

It is a happy number.

853699225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 21261321 + 832437904 = 4611^2 + 28852^2 .

It is not a de Polignac number, because 853699225 - 2²³ = 845310617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853699229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110866 + ... + 118315.

It is an arithmetic number, because the mean of its divisors is an integer number (88808025).

Almost surely, 2^853699225 is an apocalyptic number.

It is an amenable number.

853699225 is a deficient number, since it is larger than the sum of its proper divisors (211997075).

853699225 is a wasteful number, since it uses less digits than its factorization.

853699225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229340 (or 229335 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The square root of 853699225 is about 29218.1317849037. The cubic root of 853699225 is about 948.6404282446.

The spelling of 853699225 in words is "eight hundred fifty-three million, six hundred ninety-nine thousand, two hundred twenty-five".