5243343551 has 4 divisors (see below), whose sum is σ = 5243490600. Its totient is φ = 5243196504.

The previous prime is 5243343509. The next prime is 5243343587. The reversal of 5243343551 is 1553433425.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5243343551 - 2²² = 5239149247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243343851) 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, 17645 + ... + 103913.

It is an arithmetic number, because the mean of its divisors is an integer number (1310872650).

Almost surely, 2^5243343551 is an apocalyptic number.

5243343551 is a deficient number, since it is larger than the sum of its proper divisors (147049).

5243343551 is an equidigital number, since it uses as much as digits as its factorization.

5243343551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147048.

The product of its digits is 108000, while the sum is 35.

The square root of 5243343551 is about 72410.9352998565. The cubic root of 5243343551 is about 1737.2784722900.

Adding to 5243343551 its reverse (1553433425), we get a palindrome (6796776976).

The spelling of 5243343551 in words is "five billion, two hundred forty-three million, three hundred forty-three thousand, five hundred fifty-one".