5641009 has 4 divisors (see below), whose sum is σ = 6153840. Its totient is φ = 5128180.

The previous prime is 5640989. The next prime is 5641019. The reversal of 5641009 is 9001465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5641009 - 2⁷ = 5640881 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5641019) 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, 256399 + ... + 256420.

It is an arithmetic number, because the mean of its divisors is an integer number (1538460).

Almost surely, 2^5641009 is an apocalyptic number.

It is an amenable number.

5641009 is a deficient number, since it is larger than the sum of its proper divisors (512831).

5641009 is a wasteful number, since it uses less digits than its factorization.

5641009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512830.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 5641009 is about 2375.0808407294. The cubic root of 5641009 is about 178.0132233580.

The spelling of 5641009 in words is "five million, six hundred forty-one thousand, nine".