9445657225 has 6 divisors (see below), whose sum is σ = 11712614990. Its totient is φ = 7556525760.

The previous prime is 9445657223. The next prime is 9445657237. The reversal of 9445657225 is 5227565449.

It can be written as a sum of positive squares in 3 ways, for example, as 927369 + 9444729856 = 963^2 + 97184^2 .

It is not a de Polignac number, because 9445657225 - 2¹ = 9445657223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9445657223) 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, 188913120 + ... + 188913169.

Almost surely, 2^9445657225 is an apocalyptic number.

It is an amenable number.

9445657225 is a deficient number, since it is larger than the sum of its proper divisors (2266957765).

9445657225 is a wasteful number, since it uses less digits than its factorization.

9445657225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377826299 (or 377826294 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The square root of 9445657225 is about 97188.7710849355. The cubic root of 9445657225 is about 2113.8657093324.

The spelling of 9445657225 in words is "nine billion, four hundred forty-five million, six hundred fifty-seven thousand, two hundred twenty-five".