5251943543 has 8 divisors (see below), whose sum is σ = 6547877760. Its totient is φ = 4092423480.

The previous prime is 5251943537. The next prime is 5251943551. The reversal of 5251943543 is 3453491525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5251943543 - 2⁸ = 5251943287 is a prime.

It is a super-3 number, since 3×5251943543³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5251943543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251943143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34103453 + ... + 34103606.

It is an arithmetic number, because the mean of its divisors is an integer number (818484720).

Almost surely, 2^5251943543 is an apocalyptic number.

5251943543 is a deficient number, since it is larger than the sum of its proper divisors (1295934217).

5251943543 is a wasteful number, since it uses less digits than its factorization.

5251943543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68207077.

The product of its digits is 324000, while the sum is 41.

The square root of 5251943543 is about 72470.2942108006. The cubic root of 5251943543 is about 1738.2277660547.

The spelling of 5251943543 in words is "five billion, two hundred fifty-one million, nine hundred forty-three thousand, five hundred forty-three".