5481221923 has 4 divisors (see below), whose sum is σ = 5803646760. Its totient is φ = 5158797088.

The previous prime is 5481221909. The next prime is 5481221947. The reversal of 5481221923 is 3291221845.

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 5481221923 - 2²¹ = 5479124771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5481221983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161212393 + ... + 161212426.

It is an arithmetic number, because the mean of its divisors is an integer number (1450911690).

Almost surely, 2^5481221923 is an apocalyptic number.

5481221923 is a deficient number, since it is larger than the sum of its proper divisors (322424837).

5481221923 is a wasteful number, since it uses less digits than its factorization.

5481221923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322424836.

The product of its digits is 34560, while the sum is 37.

The square root of 5481221923 is about 74035.2748559766. The cubic root of 5481221923 is about 1763.1629936557.

The spelling of 5481221923 in words is "five billion, four hundred eighty-one million, two hundred twenty-one thousand, nine hundred twenty-three".