655461089 has 2 divisors, whose sum is σ = 655461090. Its totient is φ = 655461088.

The previous prime is 655461077. The next prime is 655461101. The reversal of 655461089 is 980164556.

It is a balanced prime because it is at equal distance from previous prime (655461077) and next prime (655461101).

It can be written as a sum of positive squares in only one way, i.e., 521665600 + 133795489 = 22840^2 + 11567^2 .

It is a cyclic number.

It is not a de Polignac number, because 655461089 - 2²⁰ = 654412513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (655461029) 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, 327730544 + 327730545.

It is an arithmetic number, because the mean of its divisors is an integer number (327730545).

Almost surely, 2^655461089 is an apocalyptic number.

It is an amenable number.

655461089 is a deficient number, since it is larger than the sum of its proper divisors (1).

655461089 is an equidigital number, since it uses as much as digits as its factorization.

655461089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 655461089 is about 25601.9743183997. The cubic root of 655461089 is about 868.6582961084.

The spelling of 655461089 in words is "six hundred fifty-five million, four hundred sixty-one thousand, eighty-nine".