5645601 has 24 divisors (see below), whose sum is σ = 8915816. Its totient is φ = 3421440.

The previous prime is 5645579. The next prime is 5645609. The reversal of 5645601 is 1065465.

It is a happy number.

5645601 is a `hidden beast` number, since 56 + 4 + 5 + 601 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 810000 + 4835601 = 900^2 + 2199^2 .

It is not a de Polignac number, because 5645601 - 2⁵ = 5645569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5645609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8211 + ... + 8871.

Almost surely, 2^5645601 is an apocalyptic number.

It is an amenable number.

5645601 is a deficient number, since it is larger than the sum of its proper divisors (3270215).

5645601 is a wasteful number, since it uses less digits than its factorization.

5645601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5645601 is about 2376.0473480131. The cubic root of 5645601 is about 178.0615134785.

The spelling of 5645601 in words is "five million, six hundred forty-five thousand, six hundred one".