545590 has 8 divisors (see below), whose sum is σ = 982080. Its totient is φ = 218232.

The previous prime is 545579. The next prime is 545599. The reversal of 545590 is 95545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545599) by changing a digit.

545590 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27270 + ... + 27289.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

2⁵⁴⁵⁵⁹⁰ is an apocalyptic number.

545590 is a deficient number, since it is larger than the sum of its proper divisors (436490).

545590 is a wasteful number, since it uses less digits than its factorization.

545590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54566.

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

The square root of 545590 is about 738.6406433442. The cubic root of 545590 is about 81.7125569286.

The spelling of 545590 in words is "five hundred forty-five thousand, five hundred ninety".