554845 has 4 divisors (see below), whose sum is σ = 665820. Its totient is φ = 443872.

The previous prime is 554843. The next prime is 554849. The reversal of 554845 is 548455.

554845 is nontrivially palindromic in base 15.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 423801 = 362^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 554845 - 2¹ = 554843 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

554845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55480 + ... + 55489.

It is an arithmetic number, because the mean of its divisors is an integer number (166455).

2⁵⁵⁴⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

554845 is a deficient number, since it is larger than the sum of its proper divisors (110975).

554845 is a wasteful number, since it uses less digits than its factorization.

554845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110974.

The product of its digits is 16000, while the sum is 31.

The square root of 554845 is about 744.8791848347. The cubic root of 554845 is about 82.1720065779.

It can be divided in two parts, 55 and 4845, that added together give a square (4900 = 70²).

The spelling of 554845 in words is "five hundred fifty-four thousand, eight hundred forty-five".