889597944225 has 81 divisors (see below), whose sum is σ = 1606217473497. Its totient is φ = 470656860480.

The previous prime is 889597944217. The next prime is 889597944239. The reversal of 889597944225 is 522449795988.

The square root of 889597944225 is 943185.

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

889597944225 is a `hidden beast` number, since 8 + 8 + 9 + 597 + 9 + 4 + 4 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 203854959009 + 685742985216 = 451503^2 + 828096^2 .

It is not a de Polignac number, because 889597944225 - 2³ = 889597944217 is a prime.

Its product of digits (522547200) is a multiple of the sum of its prime divisors (512).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3211544787 + ... + 3211545063.

Almost surely, 2^889597944225 is an apocalyptic number.

889597944225 is the 943185-th square number.

889597944225 is the 471593-rd centered octagonal number.

It is an amenable number.

889597944225 is a deficient number, since it is larger than the sum of its proper divisors (716619529272).

889597944225 is an equidigital number, since it uses as much as digits as its factorization.

889597944225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 512 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 72.

The spelling of 889597944225 in words is "eight hundred eighty-nine billion, five hundred ninety-seven million, nine hundred forty-four thousand, two hundred twenty-five".