854685225 has 27 divisors (see below), whose sum is σ = 1531622053. Its totient is φ = 455598240.

The previous prime is 854685197. The next prime is 854685263. The reversal of 854685225 is 522586458.

It is a happy number.

The square root of 854685225 is 29235.

It is a perfect power (a square), and thus also a powerful number.

854685225 is a `hidden beast` number, since 8 + 546 + 85 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29387241 + 825297984 = 5421^2 + 28728^2 .

It is a de Polignac number, because none of the positive numbers 2^k-854685225 is a prime.

It is a super-4 number, since 4×854685225⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 437551 + ... + 439499.

Almost surely, 2^854685225 is an apocalyptic number.

854685225 is the 29235-th square number.

854685225 is the 14618-th centered octagonal number.

It is an amenable number.

854685225 is a deficient number, since it is larger than the sum of its proper divisors (676936828).

854685225 is an equidigital number, since it uses as much as digits as its factorization.

854685225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 1957 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The cubic root of 854685225 is about 949.0055059209.

The spelling of 854685225 in words is "eight hundred fifty-four million, six hundred eighty-five thousand, two hundred twenty-five".