9980323497225 has 81 divisors (see below), whose sum is σ = 18688912728213. Its totient is φ = 5090855394240.

The previous prime is 9980323497163. The next prime is 9980323497281. The reversal of 9980323497225 is 5227943230899.

The square root of 9980323497225 is 3159165.

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

9980323497225 is a `hidden beast` number, since 9 + 9 + 80 + 323 + 4 + 9 + 7 + 225 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2777412234249 + 7202911262976 = 1666557^2 + 2683824^2 .

It is not a de Polignac number, because 9980323497225 - 2⁹ = 9980323496713 is a prime.

It is a super-2 number, since 2×9980323497225² (a number of 27 digits) contains 22 as substring.

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, 1089907347 + ... + 1089916503.

Almost surely, 2^{9980323497225} is an apocalyptic number.

9980323497225 is the 3159165-th square number.

9980323497225 is the 1579583-rd centered octagonal number.

It is an amenable number.

9980323497225 is a deficient number, since it is larger than the sum of its proper divisors (8708589230988).

9980323497225 is an frugal number, since it uses more digits than its factorization.

9980323497225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18376 (or 9188 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 9980323497225 in words is "nine trillion, nine hundred eighty billion, three hundred twenty-three million, four hundred ninety-seven thousand, two hundred twenty-five".