5645272 has 16 divisors (see below), whose sum is σ = 10623600. Its totient is φ = 2812320.

The previous prime is 5645257. The next prime is 5645273. The reversal of 5645272 is 2725465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (663975).

Almost surely, 2^5645272 is an apocalyptic number.

It is an amenable number.

5645272 is a deficient number, since it is larger than the sum of its proper divisors (4978328).

5645272 is a wasteful number, since it uses less digits than its factorization.

5645272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586 (or 2582 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 5645272 is about 2375.9781143773. The cubic root of 5645272 is about 178.0580545391.

The spelling of 5645272 in words is "five million, six hundred forty-five thousand, two hundred seventy-two".