445455 has 24 divisors (see below), whose sum is σ = 814320. Its totient is φ = 224640.

The previous prime is 445453. The next prime is 445463. The reversal of 445455 is 554544.

It is not a de Polignac number, because 445455 - 2¹ = 445453 is a prime.

445455 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (33930).

2⁴⁴⁵⁴⁵⁵ is an apocalyptic number.

445455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

445455 is a deficient number, since it is larger than the sum of its proper divisors (368865).

445455 is a wasteful number, since it uses less digits than its factorization.

445455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 445455 is about 667.4241529942. The cubic root of 445455 is about 76.3720789212.

Adding to 445455 its reverse (554544), we get a palindrome (999999).

It can be divided in two parts, 445 and 455, that added together give a square (900 = 30²).

The spelling of 445455 in words is "four hundred forty-five thousand, four hundred fifty-five".