455605 has 4 divisors (see below), whose sum is σ = 546732. Its totient is φ = 364480.

The previous prime is 455603. The next prime is 455627. The reversal of 455605 is 506554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 178929 = 526^2 + 423^2 .

It is not a de Polignac number, because 455605 - 2¹ = 455603 is a prime.

It is a Duffinian number.

455605 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 455605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455603) 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 in 3 ways as a sum of consecutive naturals, for example, 45556 + ... + 45565.

It is an arithmetic number, because the mean of its divisors is an integer number (136683).

2⁴⁵⁵⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

455605 is a deficient number, since it is larger than the sum of its proper divisors (91127).

455605 is an equidigital number, since it uses as much as digits as its factorization.

455605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91126.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 455605 is about 674.9851850226. The cubic root of 455605 is about 76.9477916739.

The spelling of 455605 in words is "four hundred fifty-five thousand, six hundred five".