99365310286225 has 9 divisors (see below), whose sum is σ = 123213046557883. Its totient is φ = 79492208356120.

The previous prime is 99365310286223. The next prime is 99365310286247. The reversal of 99365310286225 is 52268201356399.

It is a happy number.

The square root of 99365310286225 is 9968215.

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

It can be written as a sum of positive squares in only one way, i.e., 35771511703041 + 63593798583184 = 5980929^2 + 7974572^2 .

It is not a de Polignac number, because 99365310286225 - 2¹ = 99365310286223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99365310286223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 48844254 + ... + 50837896.

Almost surely, 2^{99365310286225} is an apocalyptic number.

99365310286225 is the 9968215-th square number.

99365310286225 is the 4984108-th centered octagonal number.

It is an amenable number.

99365310286225 is a deficient number, since it is larger than the sum of its proper divisors (23847736271658).

99365310286225 is an frugal number, since it uses more digits than its factorization.

99365310286225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987296 (or 1993648 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 61.

The spelling of 99365310286225 in words is "ninety-nine trillion, three hundred sixty-five billion, three hundred ten million, two hundred eighty-six thousand, two hundred twenty-five".