9958340225 has 6 divisors (see below), whose sum is σ = 12348341910. Its totient is φ = 7966672160.

The previous prime is 9958340209. The next prime is 9958340233. The reversal of 9958340225 is 5220438599.

It can be written as a sum of positive squares in 3 ways, for example, as 1551650881 + 8406689344 = 39391^2 + 91688^2 .

It is not a de Polignac number, because 9958340225 - 2⁴ = 9958340209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9958340225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199166780 + ... + 199166829.

It is an arithmetic number, because the mean of its divisors is an integer number (2058056985).

Almost surely, 2^9958340225 is an apocalyptic number.

It is an amenable number.

9958340225 is a deficient number, since it is larger than the sum of its proper divisors (2390001685).

9958340225 is a wasteful number, since it uses less digits than its factorization.

9958340225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398333619 (or 398333614 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 9958340225 is about 99791.4837298254. The cubic root of 9958340225 is about 2151.4387503519.

The spelling of 9958340225 in words is "nine billion, nine hundred fifty-eight million, three hundred forty thousand, two hundred twenty-five".