455521 has 4 divisors (see below), whose sum is σ = 496944. Its totient is φ = 414100.

The previous prime is 455513. The next prime is 455527. The reversal of 455521 is 125554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 455521 - 2³ = 455513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455492 and 455501.

It is not an unprimeable number, because it can be changed into a prime (455527) 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 3 ways as a sum of consecutive naturals, for example, 20695 + ... + 20716.

It is an arithmetic number, because the mean of its divisors is an integer number (124236).

2⁴⁵⁵⁵²¹ is an apocalyptic number.

It is an amenable number.

455521 is a deficient number, since it is larger than the sum of its proper divisors (41423).

455521 is a wasteful number, since it uses less digits than its factorization.

455521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41422.

The product of its digits is 1000, while the sum is 22.

The square root of 455521 is about 674.9229585664. The cubic root of 455521 is about 76.9430624225.

The spelling of 455521 in words is "four hundred fifty-five thousand, five hundred twenty-one".