545755 has 16 divisors (see below), whose sum is σ = 774144. Its totient is φ = 361440.

The previous prime is 545749. The next prime is 545759. The reversal of 545755 is 557545.

It is not a de Polignac number, because 545755 - 2³ = 545747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁵⁴⁵⁷⁵⁵ is an apocalyptic number.

545755 is a deficient number, since it is larger than the sum of its proper divisors (228389).

545755 is a wasteful number, since it uses less digits than its factorization.

545755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

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

The square root of 545755 is about 738.7523265615. The cubic root of 545755 is about 81.7207934022.

The spelling of 545755 in words is "five hundred forty-five thousand, seven hundred fifty-five".