554509 has 4 divisors (see below), whose sum is σ = 573660. Its totient is φ = 535360.

The previous prime is 554503. The next prime is 554527. The reversal of 554509 is 905455.

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 396900 + 157609 = 630^2 + 397^2 .

It is a cyclic number.

It is not a de Polignac number, because 554509 - 2¹³ = 546317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554503) 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, 9532 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (143415).

2⁵⁵⁴⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

554509 is a deficient number, since it is larger than the sum of its proper divisors (19151).

554509 is a wasteful number, since it uses less digits than its factorization.

554509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 554509 is about 744.6536107480. The cubic root of 554509 is about 82.1554161372.

The spelling of 554509 in words is "five hundred fifty-four thousand, five hundred nine".