5643252 has 36 divisors (see below), whose sum is σ = 15105636. Its totient is φ = 1770240.

The previous prime is 5643241. The next prime is 5643259. The reversal of 5643252 is 2523465.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 820836 = 2196^2 + 906^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3999 + ... + 5222.

It is an arithmetic number, because the mean of its divisors is an integer number (419601).

Almost surely, 2^5643252 is an apocalyptic number.

It is an amenable number.

5643252 is an abundant number, since it is smaller than the sum of its proper divisors (9462384).

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

5643252 is a wasteful number, since it uses less digits than its factorization.

5643252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248 (or 9243 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 5643252 is about 2375.5529882535. The cubic root of 5643252 is about 178.0368143355.

The spelling of 5643252 in words is "five million, six hundred forty-three thousand, two hundred fifty-two".