545564 has 24 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 250880.

The previous prime is 545551. The next prime is 545579. The reversal of 545564 is 465545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4772 + ... + 4884.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁵⁴⁵⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

545564 is a deficient number, since it is larger than the sum of its proper divisors (488644).

545564 is a wasteful number, since it uses less digits than its factorization.

545564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 545564 is about 738.6230432365. The cubic root of 545564 is about 81.7112589086.

The spelling of 545564 in words is "five hundred forty-five thousand, five hundred sixty-four".