450055 has 4 divisors (see below), whose sum is σ = 540072. Its totient is φ = 360040.

The previous prime is 450029. The next prime is 450067. The reversal of 450055 is 550054.

450055 = T₁₅₈ + T₁₅₉ + ... + T₁₈₇.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550054 = 2 ⋅275027.

It is not a de Polignac number, because 450055 - 2⁹ = 449543 is a prime.

It is a Duffinian number.

450055 is a modest number, since divided by 55 gives 45 as remainder.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

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, 45001 + ... + 45010.

It is an arithmetic number, because the mean of its divisors is an integer number (135018).

2⁴⁵⁰⁰⁵⁵ is an apocalyptic number.

450055 is a deficient number, since it is larger than the sum of its proper divisors (90017).

450055 is an equidigital number, since it uses as much as digits as its factorization.

450055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90016.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 450055 is about 670.8613865770. The cubic root of 450055 is about 76.6340651136.

Subtracting 450055 from its reverse (550054), we obtain a palindrome (99999).

The spelling of 450055 in words is "four hundred fifty thousand, fifty-five".