51056310143 has 4 divisors (see below), whose sum is σ = 51058116408. Its totient is φ = 51054503880.

The previous prime is 51056310091. The next prime is 51056310167. The reversal of 51056310143 is 34101365015.

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 51056310143 - 2³⁴ = 33876440959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056315143) 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, 860048 + ... + 917493.

It is an arithmetic number, because the mean of its divisors is an integer number (12764529102).

Almost surely, 2^51056310143 is an apocalyptic number.

51056310143 is a deficient number, since it is larger than the sum of its proper divisors (1806265).

51056310143 is a wasteful number, since it uses less digits than its factorization.

51056310143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806264.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 51056310143 its reverse (34101365015), we get a palindrome (85157675158).

The spelling of 51056310143 in words is "fifty-one billion, fifty-six million, three hundred ten thousand, one hundred forty-three".