545875 has 16 divisors (see below), whose sum is σ = 745056. Its totient is φ = 396000.

The previous prime is 545873. The next prime is 545893. The reversal of 545875 is 578545.

It is not a de Polignac number, because 545875 - 2¹ = 545873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545873) 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, 1177 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (46566).

2⁵⁴⁵⁸⁷⁵ is an apocalyptic number.

545875 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

545875 is a deficient number, since it is larger than the sum of its proper divisors (199181).

545875 is a wasteful number, since it uses less digits than its factorization.

545875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 413 counting only the distinct ones).

The product of its digits is 28000, while the sum is 34.

The square root of 545875 is about 738.8335401158. The cubic root of 545875 is about 81.7267825222.

It can be divided in two parts, 54 and 5875, that added together give a square (5929 = 77²).

The spelling of 545875 in words is "five hundred forty-five thousand, eight hundred seventy-five".