51514442143 has 4 divisors (see below), whose sum is σ = 51642907488. Its totient is φ = 51385976800.

The previous prime is 51514442137. The next prime is 51514442179. The reversal of 51514442143 is 34124441515.

It is a happy number.

51514442143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34124441515 = 5 ⋅6824888303.

It is a cyclic number.

It is not a de Polignac number, because 51514442143 - 2¹³ = 51514433951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51514442099 and 51514442108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51514446143) 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, 64232071 + ... + 64232872.

It is an arithmetic number, because the mean of its divisors is an integer number (12910726872).

Almost surely, 2^51514442143 is an apocalyptic number.

51514442143 is a deficient number, since it is larger than the sum of its proper divisors (128465345).

51514442143 is a wasteful number, since it uses less digits than its factorization.

51514442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128465344.

The product of its digits is 38400, while the sum is 34.

Adding to 51514442143 its reverse (34124441515), we get a palindrome (85638883658).

The spelling of 51514442143 in words is "fifty-one billion, five hundred fourteen million, four hundred forty-two thousand, one hundred forty-three".