51103440543 has 8 divisors (see below), whose sum is σ = 68430359088. Its totient is φ = 33922741184.

The previous prime is 51103440517. The next prime is 51103440547. The reversal of 51103440543 is 34504430115.

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 51103440543 - 2⁸ = 51103440287 is a prime.

It is a super-2 number, since 2×51103440543² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51103440543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51103440547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36553980 + ... + 36555377.

It is an arithmetic number, because the mean of its divisors is an integer number (8553794886).

Almost surely, 2^51103440543 is an apocalyptic number.

51103440543 is a deficient number, since it is larger than the sum of its proper divisors (17326918545).

51103440543 is a wasteful number, since it uses less digits than its factorization.

51103440543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73109593.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51103440543 its reverse (34504430115), we get a palindrome (85607870658).

The spelling of 51103440543 in words is "fifty-one billion, one hundred three million, four hundred forty thousand, five hundred forty-three".