89255009 has 2 divisors, whose sum is σ = 89255010. Its totient is φ = 89255008.

The previous prime is 89254969. The next prime is 89255029. The reversal of 89255009 is 90055298.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 19114384 = 8375^2 + 4372^2 .

It is a cyclic number.

It is not a de Polignac number, because 89255009 - 2¹² = 89250913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89255029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44627504 + 44627505.

It is an arithmetic number, because the mean of its divisors is an integer number (44627505).

Almost surely, 2^89255009 is an apocalyptic number.

It is an amenable number.

89255009 is a deficient number, since it is larger than the sum of its proper divisors (1).

89255009 is an equidigital number, since it uses as much as digits as its factorization.

89255009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 89255009 is about 9447.4869145186. The cubic root of 89255009 is about 446.9005262221.

The spelling of 89255009 in words is "eighty-nine million, two hundred fifty-five thousand, nine".