447715225 has 6 divisors (see below), whose sum is σ = 555166910. Its totient is φ = 358172160.

The previous prime is 447715223. The next prime is 447715231. The reversal of 447715225 is 522517744.

It can be written as a sum of positive squares in 3 ways, for example, as 100861849 + 346853376 = 10043^2 + 18624^2 .

It is not a de Polignac number, because 447715225 - 2¹ = 447715223 is a prime.

It is a super-4 number, since 4×447715225⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (447715223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8954280 + ... + 8954329.

Almost surely, 2^447715225 is an apocalyptic number.

It is an amenable number.

447715225 is a deficient number, since it is larger than the sum of its proper divisors (107451685).

447715225 is a wasteful number, since it uses less digits than its factorization.

447715225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17908619 (or 17908614 counting only the distinct ones).

The product of its digits is 78400, while the sum is 37.

The square root of 447715225 is about 21159.2822420800. The cubic root of 447715225 is about 765.0103092862.

The spelling of 447715225 in words is "four hundred forty-seven million, seven hundred fifteen thousand, two hundred twenty-five".