545636 has 24 divisors (see below), whose sum is σ = 1176000. Its totient is φ = 215712.

The previous prime is 545621. The next prime is 545641. The reversal of 545636 is 636545.

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 = 545599 and 545608.

It is an unprimeable number.

545636 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (49000).

2⁵⁴⁵⁶³⁶ is an apocalyptic number.

It is an amenable number.

545636 is an abundant number, since it is smaller than the sum of its proper divisors (630364).

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

545636 is a wasteful number, since it uses less digits than its factorization.

545636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1521 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 545636 is about 738.6717809691. The cubic root of 545636 is about 81.7148533245.

Subtracting 545636 from its reverse (636545), we obtain a palindrome (90909).

The spelling of 545636 in words is "five hundred forty-five thousand, six hundred thirty-six".