450523 has 4 divisors (see below), whose sum is σ = 465088. Its totient is φ = 435960.

The previous prime is 450503. The next prime is 450529. The reversal of 450523 is 325054.

It is a happy number.

450523 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325054 = 2 ⋅162527.

It is a cyclic number.

It is not a de Polignac number, because 450523 - 2⁹ = 450011 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

450523 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 450523.

It is not an unprimeable number, because it can be changed into a prime (450529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7236 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (116272).

2⁴⁵⁰⁵²³ is an apocalyptic number.

450523 is a deficient number, since it is larger than the sum of its proper divisors (14565).

450523 is a wasteful number, since it uses less digits than its factorization.

450523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14564.

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

The square root of 450523 is about 671.2101012351. The cubic root of 450523 is about 76.6606191407.

Adding to 450523 its reverse (325054), we get a palindrome (775577).

The spelling of 450523 in words is "four hundred fifty thousand, five hundred twenty-three".