8458660225 has 12 divisors (see below), whose sum is σ = 10496719660. Its totient is φ = 6761779200.

The previous prime is 8458660219. The next prime is 8458660229. The reversal of 8458660225 is 5220668548.

It can be written as a sum of positive squares in 6 ways, for example, as 169104016 + 8289556209 = 13004^2 + 91047^2 .

It is not a de Polignac number, because 8458660225 - 2¹¹ = 8458658177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8458660229) 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, 95040 + ... + 161089.

Almost surely, 2^8458660225 is an apocalyptic number.

It is an amenable number.

8458660225 is a deficient number, since it is larger than the sum of its proper divisors (2038059435).

8458660225 is a wasteful number, since it uses less digits than its factorization.

8458660225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257460 (or 257455 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The square root of 8458660225 is about 91970.9749051297. The cubic root of 8458660225 is about 2037.5136491489.

The spelling of 8458660225 in words is "eight billion, four hundred fifty-eight million, six hundred sixty thousand, two hundred twenty-five".