455665 has 16 divisors (see below), whose sum is σ = 640512. Its totient is φ = 304704.

The previous prime is 455659. The next prime is 455681. The reversal of 455665 is 566554.

It is a cyclic number.

It is not a de Polignac number, because 455665 - 2⁷ = 455537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1507 + ... + 1783.

It is an arithmetic number, because the mean of its divisors is an integer number (40032).

2⁴⁵⁵⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

455665 is a deficient number, since it is larger than the sum of its proper divisors (184847).

455665 is a wasteful number, since it uses less digits than its factorization.

455665 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 digits is 18000, while the sum is 31.

The square root of 455665 is about 675.0296289794. The cubic root of 455665 is about 76.9511693547.

Subtracting 455665 from its reverse (566554), we obtain a square (110889 = 333²).

The spelling of 455665 in words is "four hundred fifty-five thousand, six hundred sixty-five".