445255 has 4 divisors (see below), whose sum is σ = 534312. Its totient is φ = 356200.

The previous prime is 445229. The next prime is 445261. The reversal of 445255 is 552544.

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

It is not a de Polignac number, because 445255 - 2¹⁵ = 412487 is a prime.

It is a Duffinian number.

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, 44521 + ... + 44530.

It is an arithmetic number, because the mean of its divisors is an integer number (133578).

2⁴⁴⁵²⁵⁵ is an apocalyptic number.

445255 is a deficient number, since it is larger than the sum of its proper divisors (89057).

445255 is an equidigital number, since it uses as much as digits as its factorization.

445255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89056.

The product of its digits is 4000, while the sum is 25.

The square root of 445255 is about 667.2743064138. The cubic root of 445255 is about 76.3606473870.

Adding to 445255 its reverse (552544), we get a palindrome (997799).

The spelling of 445255 in words is "four hundred forty-five thousand, two hundred fifty-five".