545956 has 12 divisors (see below), whose sum is σ = 979020. Its totient is φ = 266240.

The previous prime is 545947. The next prime is 545959. The reversal of 545956 is 659545.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 443556 = 320^2 + 666^2 .

It is not an unprimeable number, because it can be changed into a prime (545959) by changing a digit.

545956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (81585).

2⁵⁴⁵⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

545956 is a deficient number, since it is larger than the sum of its proper divisors (433064).

545956 is a wasteful number, since it uses less digits than its factorization.

545956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3372 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

The square root of 545956 is about 738.8883542187. Note that the first 3 decimals coincide. The cubic root of 545956 is about 81.7308246821.

The spelling of 545956 in words is "five hundred forty-five thousand, nine hundred fifty-six".