5640203291 has 4 divisors (see below), whose sum is σ = 5641792512. Its totient is φ = 5638614072.

The previous prime is 5640203269. The next prime is 5640203321. The reversal of 5640203291 is 1923020465.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5640203291 - 2⁶ = 5640203227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5640203201) 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, 789275 + ... + 796388.

It is an arithmetic number, because the mean of its divisors is an integer number (1410448128).

Almost surely, 2^5640203291 is an apocalyptic number.

5640203291 is a deficient number, since it is larger than the sum of its proper divisors (1589221).

5640203291 is a wasteful number, since it uses less digits than its factorization.

5640203291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589220.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 5640203291 is about 75101.2868797866. The cubic root of 5640203291 is about 1780.0474770613.

The spelling of 5640203291 in words is "five billion, six hundred forty million, two hundred three thousand, two hundred ninety-one".