5541322821 has 4 divisors (see below), whose sum is σ = 7388430432. Its totient is φ = 3694215212.

The previous prime is 5541322807. The next prime is 5541322823. The reversal of 5541322821 is 1282231455.

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 5541322821 - 2⁹ = 5541322309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5541322823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923553801 + ... + 923553806.

It is an arithmetic number, because the mean of its divisors is an integer number (1847107608).

Almost surely, 2^5541322821 is an apocalyptic number.

It is an amenable number.

5541322821 is a deficient number, since it is larger than the sum of its proper divisors (1847107611).

5541322821 is a wasteful number, since it uses less digits than its factorization.

5541322821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847107610.

The product of its digits is 19200, while the sum is 33.

The square root of 5541322821 is about 74440.0619357614. The cubic root of 5541322821 is about 1769.5838681479.

The spelling of 5541322821 in words is "five billion, five hundred forty-one million, three hundred twenty-two thousand, eight hundred twenty-one".