655105 has 16 divisors (see below), whose sum is σ = 880704. Its totient is φ = 463680.

The previous prime is 655103. The next prime is 655111. The reversal of 655105 is 501556.

It is not a de Polignac number, because 655105 - 2¹ = 655103 is a prime.

It is a super-2 number, since 2×655105² = 858325122050, which contains 22 as substring.

655105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (655103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (55044).

2⁶⁵⁵¹⁰⁵ is an apocalyptic number.

It is an amenable number.

655105 is a deficient number, since it is larger than the sum of its proper divisors (225599).

655105 is a wasteful number, since it uses less digits than its factorization.

655105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 655105 is about 809.3855694291. The cubic root of 655105 is about 86.8500963761.

The spelling of 655105 in words is "six hundred fifty-five thousand, one hundred five".