545575 has 12 divisors (see below), whose sum is σ = 685720. Its totient is φ = 430560.

The previous prime is 545551. The next prime is 545579. The reversal of 545575 is 575545.

545575 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 545575 - 2⁵ = 545543 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545579) 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, 3397 + ... + 3553.

2⁵⁴⁵⁵⁷⁵ is an apocalyptic number.

545575 is a deficient number, since it is larger than the sum of its proper divisors (140145).

545575 is a wasteful number, since it uses less digits than its factorization.

545575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 301 counting only the distinct ones).

The product of its digits is 17500, while the sum is 31.

The square root of 545575 is about 738.6304894871. The cubic root of 545575 is about 81.7118080759.

The spelling of 545575 in words is "five hundred forty-five thousand, five hundred seventy-five".