545648 has 20 divisors (see below), whose sum is σ = 1075080. Its totient is φ = 268224.

The previous prime is 545647. The next prime is 545651. The reversal of 545648 is 846545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (53754).

2⁵⁴⁵⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

545648 is a deficient number, since it is larger than the sum of its proper divisors (529432).

545648 is a wasteful number, since it uses less digits than its factorization.

545648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 578 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 545648 is about 738.6799036118. The cubic root of 545648 is about 81.7154523631.

The spelling of 545648 in words is "five hundred forty-five thousand, six hundred forty-eight".