9947070225 has 81 divisors (see below), whose sum is σ = 18280867059. Its totient is φ = 5170262400.

The previous prime is 9947070197. The next prime is 9947070241. The reversal of 9947070225 is 5220707499.

The square root of 9947070225 is 99735.

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

9947070225 is a `hidden beast` number, since 99 + 470 + 70 + 2 + 25 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 9376242561 + 570827664 = 96831^2 + 23892^2 .

It is not a de Polignac number, because 9947070225 - 2⁵ = 9947070193 is a prime.

It is a super-2 number, since 2×9947070225² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 91257471 + ... + 91257579.

Almost surely, 2^9947070225 is an apocalyptic number.

9947070225 is the 99735-th square number.

9947070225 is the 49868-th centered octagonal number.

It is an amenable number.

9947070225 is a deficient number, since it is larger than the sum of its proper divisors (8333796834).

9947070225 is a wasteful number, since it uses less digits than its factorization.

9947070225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The cubic root of 9947070225 is about 2150.6268390390.

The spelling of 9947070225 in words is "nine billion, nine hundred forty-seven million, seventy thousand, two hundred twenty-five".