655069 has 2 divisors, whose sum is σ = 655070. Its totient is φ = 655068.

The previous prime is 655043. The next prime is 655087. The reversal of 655069 is 960556.

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., 582169 + 72900 = 763^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 655069 - 2⁵ = 655037 is a prime.

It is a super-2 number, since 2×655069² = 858230789522, which contains 22 as substring.

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 655069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (658069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327534 + 327535.

It is an arithmetic number, because the mean of its divisors is an integer number (327535).

2⁶⁵⁵⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

655069 is a deficient number, since it is larger than the sum of its proper divisors (1).

655069 is an equidigital number, since it uses as much as digits as its factorization.

655069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 655069 is about 809.3633300317. The cubic root of 655069 is about 86.8485054552.

The spelling of 655069 in words is "six hundred fifty-five thousand, sixty-nine".