99925289 has 2 divisors, whose sum is σ = 99925290. Its totient is φ = 99925288.

The previous prime is 99925261. The next prime is 99925349. The reversal of 99925289 is 98252999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 31449664 = 8275^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 99925289 - 2¹² = 99921193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99925289.

It is not a weakly prime, because it can be changed into another prime (99925219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49962644 + 49962645.

It is an arithmetic number, because the mean of its divisors is an integer number (49962645).

Almost surely, 2^99925289 is an apocalyptic number.

It is an amenable number.

99925289 is a deficient number, since it is larger than the sum of its proper divisors (1).

99925289 is an equidigital number, since it uses as much as digits as its factorization.

99925289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 53.

The square root of 99925289 is about 9996.2637520226. The cubic root of 99925289 is about 464.0432619814.

The spelling of 99925289 in words is "ninety-nine million, nine hundred twenty-five thousand, two hundred eighty-nine".