5243647277531 has 4 divisors (see below), whose sum is σ = 5647004760432. Its totient is φ = 4840289794632.

The previous prime is 5243647277441. The next prime is 5243647277537. The reversal of 5243647277531 is 1357727463425.

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 5243647277531 - 2¹⁰ = 5243647276507 is a prime.

It is a super-2 number, since 2×5243647277531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5243647277537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201678741431 + ... + 201678741456.

It is an arithmetic number, because the mean of its divisors is an integer number (1411751190108).

Almost surely, 2^{5243647277531} is an apocalyptic number.

5243647277531 is a deficient number, since it is larger than the sum of its proper divisors (403357482901).

5243647277531 is a wasteful number, since it uses less digits than its factorization.

5243647277531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403357482900.

The product of its digits is 29635200, while the sum is 56.

The spelling of 5243647277531 in words is "five trillion, two hundred forty-three billion, six hundred forty-seven million, two hundred seventy-seven thousand, five hundred thirty-one".