545624 has 16 divisors (see below), whose sum is σ = 1030920. Its totient is φ = 270720.

The previous prime is 545621. The next prime is 545641. The reversal of 545624 is 426545.

545624 is nontrivially palindromic in base 16.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 545593 and 545602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545621) 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, 1787 + ... + 2069.

2⁵⁴⁵⁶²⁴ is an apocalyptic number.

It is an amenable number.

545624 is a deficient number, since it is larger than the sum of its proper divisors (485296).

545624 is a wasteful number, since it uses less digits than its factorization.

545624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 526 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 545624 is about 738.6636582370. The cubic root of 545624 is about 81.7142542772.

The spelling of 545624 in words is "five hundred forty-five thousand, six hundred twenty-four".