51550143443 has 8 divisors (see below), whose sum is σ = 56343231360. Its totient is φ = 46952691840.

The previous prime is 51550143439. The next prime is 51550143451. The reversal of 51550143443 is 34434105515.

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 51550143443 - 2² = 51550143439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51550143473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48908528 + ... + 48909581.

It is an arithmetic number, because the mean of its divisors is an integer number (7042903920).

Almost surely, 2^51550143443 is an apocalyptic number.

51550143443 is a deficient number, since it is larger than the sum of its proper divisors (4793087917).

51550143443 is a wasteful number, since it uses less digits than its factorization.

51550143443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97818157.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 51550143443 its reverse (34434105515), we get a palindrome (85984248958).

The spelling of 51550143443 in words is "fifty-one billion, five hundred fifty million, one hundred forty-three thousand, four hundred forty-three".