554445 has 30 divisors (see below), whose sum is σ = 1021482. Its totient is φ = 287712.

The previous prime is 554431. The next prime is 554447. The reversal of 554445 is 544455.

It can be written as a sum of positive squares in 3 ways, for example, as 272484 + 281961 = 522^2 + 531^2 .

It is not a de Polignac number, because 554445 - 2⁷ = 554317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554447) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 14967 + ... + 15003.

2⁵⁵⁴⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

554445 is a deficient number, since it is larger than the sum of its proper divisors (467037).

554445 is an equidigital number, since it uses as much as digits as its factorization.

554445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 45 counting only the distinct ones).

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

The square root of 554445 is about 744.6106365074. The cubic root of 554445 is about 82.1522552934.

Multiplying 554445 by its product of digits (8000), we get a square (4435560000 = 66600²).

It can be divided in two parts, 554 and 445, that added together give a palindrome (999).

The spelling of 554445 in words is "five hundred fifty-four thousand, four hundred forty-five".