5643500 has 24 divisors (see below), whose sum is σ = 12326496. Its totient is φ = 2257200.

The previous prime is 5643479. The next prime is 5643503. The reversal of 5643500 is 53465.

It is not an unprimeable number, because it can be changed into a prime (5643503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144 + ... + 6143.

It is an arithmetic number, because the mean of its divisors is an integer number (513604).

Almost surely, 2^5643500 is an apocalyptic number.

5643500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5643500 is an abundant number, since it is smaller than the sum of its proper divisors (6682996).

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

5643500 is a wasteful number, since it uses less digits than its factorization.

5643500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11306 (or 11294 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 5643500 is about 2375.6051860526. The cubic root of 5643500 is about 178.0394223166.

Adding to 5643500 its reverse (53465), we get a palindrome (5696965).

It can be divided in two parts, 5643 and 500, that multiplied together give a triangular number (2821500 = T₂₃₇₅).

The spelling of 5643500 in words is "five million, six hundred forty-three thousand, five hundred".