445563 has 12 divisors (see below), whose sum is σ = 664768. Its totient is φ = 287280.

The previous prime is 445541. The next prime is 445567. The reversal of 445563 is 365544.

It is not a de Polignac number, because 445563 - 2⁶ = 445499 is a prime.

It is a d-powerful number, because it can be written as 4² + 4⁹ + 5⁵ + 5⁵ + 6 + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520 + ... + 1077.

2⁴⁴⁵⁵⁶³ is an apocalyptic number.

445563 is a deficient number, since it is larger than the sum of its proper divisors (219205).

445563 is a wasteful number, since it uses less digits than its factorization.

445563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1631 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 445563 is about 667.5050561606. The cubic root of 445563 is about 76.3782505271.

The spelling of 445563 in words is "four hundred forty-five thousand, five hundred sixty-three".