5643549633 has 4 divisors (see below), whose sum is σ = 7524732848. Its totient is φ = 3762366420.

The previous prime is 5643549607. The next prime is 5643549647. The reversal of 5643549633 is 3369453465.

It is a happy number.

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 not a de Polignac number, because 5643549633 - 2⁵ = 5643549601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5643549733) 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, 940591603 + ... + 940591608.

It is an arithmetic number, because the mean of its divisors is an integer number (1881183212).

Almost surely, 2^5643549633 is an apocalyptic number.

It is an amenable number.

5643549633 is a deficient number, since it is larger than the sum of its proper divisors (1881183215).

5643549633 is a wasteful number, since it uses less digits than its factorization.

5643549633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881183214.

The product of its digits is 3499200, while the sum is 48.

The square root of 5643549633 is about 75123.5624354969. The cubic root of 5643549633 is about 1780.3994425069.

The spelling of 5643549633 in words is "five billion, six hundred forty-three million, five hundred forty-nine thousand, six hundred thirty-three".