545655 has 16 divisors (see below), whose sum is σ = 952704. Its totient is φ = 264480.

The previous prime is 545651. The next prime is 545663. The reversal of 545655 is 556545.

It is not a de Polignac number, because 545655 - 2² = 545651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545651) 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, 1489 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (59544).

2⁵⁴⁵⁶⁵⁵ is an apocalyptic number.

545655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

545655 is a deficient number, since it is larger than the sum of its proper divisors (407049).

545655 is a wasteful number, since it uses less digits than its factorization.

545655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its digits is 15000, while the sum is 30.

The square root of 545655 is about 738.6846417789. The cubic root of 545655 is about 81.7158017982.

The spelling of 545655 in words is "five hundred forty-five thousand, six hundred fifty-five".