5451543321 has 16 divisors (see below), whose sum is σ = 8384753664. Its totient is φ = 3086052624.

The previous prime is 5451543299. The next prime is 5451543353. The reversal of 5451543321 is 1233451545.

5451543321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5451543321 - 2⁶ = 5451543257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5451543121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210825 + ... + 1215318.

It is an arithmetic number, because the mean of its divisors is an integer number (524047104).

Almost surely, 2^5451543321 is an apocalyptic number.

It is an amenable number.

5451543321 is a deficient number, since it is larger than the sum of its proper divisors (2933210343).

5451543321 is a wasteful number, since it uses less digits than its factorization.

5451543321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426260.

The product of its digits is 36000, while the sum is 33.

The square root of 5451543321 is about 73834.5672500354. The cubic root of 5451543321 is about 1759.9749610117.

Adding to 5451543321 its reverse (1233451545), we get a palindrome (6684994866).

The spelling of 5451543321 in words is "five billion, four hundred fifty-one million, five hundred forty-three thousand, three hundred twenty-one".