5240388407543 has 6 divisors (see below), whose sum is σ = 5468242837704. Its totient is φ = 5012534932064.

The previous prime is 5240388407519. The next prime is 5240388407561. The reversal of 5240388407543 is 3457048830425.

It is a de Polignac number, because none of the positive numbers 2^k-5240388407543 is a prime.

It is a super-2 number, since 2×5240388407543² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5240388407143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10739903 + ... + 11217231.

It is an arithmetic number, because the mean of its divisors is an integer number (911373806284).

Almost surely, 2^{5240388407543} is an apocalyptic number.

5240388407543 is a deficient number, since it is larger than the sum of its proper divisors (227854430161).

5240388407543 is an frugal number, since it uses more digits than its factorization.

5240388407543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954681 (or 477352 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 53.

The spelling of 5240388407543 in words is "five trillion, two hundred forty billion, three hundred eighty-eight million, four hundred seven thousand, five hundred forty-three".