5643520 has 36 divisors (see below), whose sum is σ = 13521060. Its totient is φ = 2256896.

The previous prime is 5643509. The next prime is 5643529. The reversal of 5643520 is 253465.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 4528384 = 1056^2 + 2128^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643529) 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, 925 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (375585).

Almost surely, 2^5643520 is an apocalyptic number.

It is an amenable number.

5643520 is an abundant number, since it is smaller than the sum of its proper divisors (7877540).

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

5643520 is an equidigital number, since it uses as much as digits as its factorization.

5643520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430 (or 4416 counting only the distinct ones).

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

The square root of 5643520 is about 2375.6093955026. The cubic root of 5643520 is about 178.0396326343.

Adding to 5643520 its reverse (253465), we get a palindrome (5896985).

The spelling of 5643520 in words is "five million, six hundred forty-three thousand, five hundred twenty".