51363131432543 has 4 divisors (see below), whose sum is σ = 58700721637200. Its totient is φ = 44025541227888.

The previous prime is 51363131432507. The next prime is 51363131432633. The reversal of 51363131432543 is 34523413136315.

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 51363131432543 - 2⁶ = 51363131432479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51363131432494 and 51363131432503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51363131432843) 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, 3668795102318 + ... + 3668795102331.

It is an arithmetic number, because the mean of its divisors is an integer number (14675180409300).

Almost surely, 2^{51363131432543} is an apocalyptic number.

51363131432543 is a deficient number, since it is larger than the sum of its proper divisors (7337590204657).

51363131432543 is an equidigital number, since it uses as much as digits as its factorization.

51363131432543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337590204656.

The product of its digits is 1166400, while the sum is 44.

Adding to 51363131432543 its reverse (34523413136315), we get a palindrome (85886544568858).

The spelling of 51363131432543 in words is "fifty-one trillion, three hundred sixty-three billion, one hundred thirty-one million, four hundred thirty-two thousand, five hundred forty-three".