455454221 has 4 divisors (see below), whose sum is σ = 455532000. Its totient is φ = 455376444.

The previous prime is 455454169. The next prime is 455454229. The reversal of 455454221 is 122454554.

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 455454221 - 2¹⁰ = 455453197 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 (455454229) 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, 29321 + ... + 42078.

It is an arithmetic number, because the mean of its divisors is an integer number (113883000).

Almost surely, 2^455454221 is an apocalyptic number.

It is an amenable number.

455454221 is a deficient number, since it is larger than the sum of its proper divisors (77779).

455454221 is an equidigital number, since it uses as much as digits as its factorization.

455454221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77778.

The product of its digits is 32000, while the sum is 32.

The square root of 455454221 is about 21341.3734562703. The cubic root of 455454221 is about 769.3930230906.

The spelling of 455454221 in words is "four hundred fifty-five million, four hundred fifty-four thousand, two hundred twenty-one".