545250 has 32 divisors (see below), whose sum is σ = 1362816. Its totient is φ = 145200.

The previous prime is 545239. The next prime is 545257. The reversal of 545250 is 52545.

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

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (545257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (42588).

2⁵⁴⁵²⁵⁰ is an apocalyptic number.

545250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 545250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681408).

545250 is an abundant number, since it is smaller than the sum of its proper divisors (817566).

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

545250 is a wasteful number, since it uses less digits than its factorization.

545250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 545250 is about 738.4104549639. The cubic root of 545250 is about 81.6955795631.

Adding to 545250 its reverse (52545), we get a palindrome (597795).

The spelling of 545250 in words is "five hundred forty-five thousand, two hundred fifty".