455023 has 4 divisors (see below), whose sum is σ = 457240. Its totient is φ = 452808.

The previous prime is 455011. The next prime is 455033. The reversal of 455023 is 320554.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 455023 - 2⁵ = 454991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455003) 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, 765 + ... + 1222.

It is an arithmetic number, because the mean of its divisors is an integer number (114310).

2⁴⁵⁵⁰²³ is an apocalyptic number.

455023 is a deficient number, since it is larger than the sum of its proper divisors (2217).

455023 is a wasteful number, since it uses less digits than its factorization.

455023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 455023 is about 674.5539266804. The cubic root of 455023 is about 76.9150127700.

Adding to 455023 its reverse (320554), we get a palindrome (775577).

The spelling of 455023 in words is "four hundred fifty-five thousand, twenty-three".