873318285225 has 135 divisors (see below), whose sum is σ = 1708873389333. Its totient is φ = 440851844160.

The previous prime is 873318285181. The next prime is 873318285239. The reversal of 873318285225 is 522582813378.

The square root of 873318285225 is 934515.

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

873318285225 is a `hidden beast` number, since 8 + 7 + 3 + 31 + 82 + 8 + 522 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 217451544489 + 655866740736 = 466317^2 + 809856^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 873318285225 - 2¹⁹ = 873317760937 is a prime.

Its product of digits (6451200) is a multiple of the sum of its prime divisors (1120).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 799009779 + ... + 799010871.

Almost surely, 2^873318285225 is an apocalyptic number.

873318285225 is the 934515-th square number.

873318285225 is the 467258-th centered octagonal number.

It is an amenable number.

873318285225 is a deficient number, since it is larger than the sum of its proper divisors (835555104108).

873318285225 is an equidigital number, since it uses as much as digits as its factorization.

873318285225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 1120 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 873318285225 in words is "eight hundred seventy-three billion, three hundred eighteen million, two hundred eighty-five thousand, two hundred twenty-five".