545632 has 36 divisors (see below), whose sum is σ = 1160460. Its totient is φ = 252416.

The previous prime is 545621. The next prime is 545641. The reversal of 545632 is 236545.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 545597 and 545606.

It is a congruent number.

It is an unprimeable 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 5 ways as a sum of consecutive naturals, for example, 9219 + ... + 9277.

It is an arithmetic number, because the mean of its divisors is an integer number (32235).

2⁵⁴⁵⁶³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580230).

545632 is an abundant number, since it is smaller than the sum of its proper divisors (614828).

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

545632 is a wasteful number, since it uses less digits than its factorization.

545632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 78 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 545632 is about 738.6690734016. The cubic root of 545632 is about 81.7146536431.

The spelling of 545632 in words is "five hundred forty-five thousand, six hundred thirty-two".