545772 has 12 divisors (see below), whose sum is σ = 1273496. Its totient is φ = 181920.

The previous prime is 545759. The next prime is 545773. The reversal of 545772 is 277545.

545772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545772.

It is not an unprimeable number, because it can be changed into a prime (545773) 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, 22729 + ... + 22752.

2⁵⁴⁵⁷⁷² is an apocalyptic number.

It is an amenable number.

545772 is an abundant number, since it is smaller than the sum of its proper divisors (727724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545772 is a wasteful number, since it uses less digits than its factorization.

545772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45488 (or 45486 counting only the distinct ones).

The product of its digits is 9800, while the sum is 30.

The square root of 545772 is about 738.7638323578. The cubic root of 545772 is about 81.7216419143.

The spelling of 545772 in words is "five hundred forty-five thousand, seven hundred seventy-two".