8661094225 has 27 divisors (see below), whose sum is σ = 12497886747. Its totient is φ = 5936802480.

The previous prime is 8661094219. The next prime is 8661094229. The reversal of 8661094225 is 5224901668.

The square root of 8661094225 is 93065.

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

It can be written as a sum of positive squares in only one way, i.e., 3117993921 + 5543100304 = 55839^2 + 74452^2 .

It is not a de Polignac number, because 8661094225 - 2³ = 8661094217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8661094229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3255946 + ... + 3258604.

Almost surely, 2^8661094225 is an apocalyptic number.

8661094225 is the 93065-th square number.

8661094225 is the 46533-rd centered octagonal number.

It is an amenable number.

8661094225 is a deficient number, since it is larger than the sum of its proper divisors (3836792522).

8661094225 is an frugal number, since it uses more digits than its factorization.

8661094225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The cubic root of 8661094225 is about 2053.6397148135.

The spelling of 8661094225 in words is "eight billion, six hundred sixty-one million, ninety-four thousand, two hundred twenty-five".