655065 has 12 divisors (see below), whose sum is σ = 1135524. Its totient is φ = 349344.

The previous prime is 655043. The next prime is 655069. The reversal of 655065 is 560556.

655065 is a `hidden beast` number, since 655 + 0 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 488601 = 408^2 + 699^2 .

It is not a de Polignac number, because 655065 - 2⁵ = 655033 is a prime.

It is a super-2 number, since 2×655065² = 858220308450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7234 + ... + 7323.

It is an arithmetic number, because the mean of its divisors is an integer number (94627).

2⁶⁵⁵⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

655065 is a deficient number, since it is larger than the sum of its proper divisors (480459).

655065 is a wasteful number, since it uses less digits than its factorization.

655065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568 (or 14565 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 655065 is about 809.3608589498. The cubic root of 655065 is about 86.8483286826.

The spelling of 655065 in words is "six hundred fifty-five thousand, sixty-five".