545536 has 18 divisors (see below), whose sum is σ = 1089452. Its totient is φ = 272640.

The previous prime is 545533. The next prime is 545543. The reversal of 545536 is 635545.

It is a d-powerful number, because it can be written as 5 + 4³ + 5⁵ + 5⁵ + 3¹² + 6⁵ .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (545533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810 + ... + 1321.

2⁵⁴⁵⁵³⁶ is an apocalyptic number.

It is an amenable number.

545536 is a deficient number, since it is larger than the sum of its proper divisors (543916).

545536 is an equidigital number, since it uses as much as digits as its factorization.

545536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 2133 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 545536 is about 738.6040888054. The cubic root of 545536 is about 81.7098609947.

Subtracting 545536 from its reverse (635545), we obtain a palindrome (90009).

It can be divided in two parts, 545 and 536, that added together give a triangular number (1081 = T₄₆).

The spelling of 545536 in words is "five hundred forty-five thousand, five hundred thirty-six".