545650 has 24 divisors (see below), whose sum is σ = 1160640. Its totient is φ = 186960.

The previous prime is 545647. The next prime is 545651. The reversal of 545650 is 56545.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (545651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (48360).

2⁵⁴⁵⁶⁵⁰ is an apocalyptic number.

545650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545650 is an abundant number, since it is smaller than the sum of its proper divisors (614990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545650 is a wasteful number, since it uses less digits than its factorization.

545650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 545650 is about 738.6812573770. The cubic root of 545650 is about 81.7155522020.

The spelling of 545650 in words is "five hundred forty-five thousand, six hundred fifty".