51355306523654 has 16 divisors (see below), whose sum is σ = 92671229817600. Its totient is φ = 20851026708744.

The previous prime is 51355306523641. The next prime is 51355306523657. The reversal of 51355306523654 is 45632560355315.

It is a junction number, because it is equal to n+sod(n) for n = 51355306523596 and 51355306523605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51355306523657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96532530794 + ... + 96532531325.

It is an arithmetic number, because the mean of its divisors is an integer number (5791951863600).

Almost surely, 2^{51355306523654} is an apocalyptic number.

51355306523654 is a deficient number, since it is larger than the sum of its proper divisors (41315923293946).

51355306523654 is a wasteful number, since it uses less digits than its factorization.

51355306523654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193065062147.

The product of its (nonzero) digits is 24300000, while the sum is 53.

Adding to 51355306523654 its reverse (45632560355315), we get a palindrome (96987866878969).

The spelling of 51355306523654 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred six million, five hundred twenty-three thousand, six hundred fifty-four".