9955289 has 2 divisors, whose sum is σ = 9955290. Its totient is φ = 9955288.

The previous prime is 9955277. The next prime is 9955291. The reversal of 9955289 is 9825599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 3579664 = 2525^2 + 1892^2 .

It is a cyclic number.

It is not a de Polignac number, because 9955289 - 2¹⁶ = 9889753 is a prime.

Together with 9955291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9955219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977644 + 4977645.

It is an arithmetic number, because the mean of its divisors is an integer number (4977645).

Almost surely, 2^9955289 is an apocalyptic number.

It is an amenable number.

9955289 is a deficient number, since it is larger than the sum of its proper divisors (1).

9955289 is an equidigital number, since it uses as much as digits as its factorization.

9955289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 47.

The square root of 9955289 is about 3155.2003105984. The cubic root of 9955289 is about 215.1218995047.

The spelling of 9955289 in words is "nine million, nine hundred fifty-five thousand, two hundred eighty-nine".