51056143 has 2 divisors, whose sum is σ = 51056144. Its totient is φ = 51056142.

The previous prime is 51056141. The next prime is 51056167. The reversal of 51056143 is 34165015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51056143 - 2¹ = 51056141 is a prime.

Together with 51056141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51056141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528071 + 25528072.

It is an arithmetic number, because the mean of its divisors is an integer number (25528072).

Almost surely, 2^51056143 is an apocalyptic number.

51056143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51056143 is an equidigital number, since it uses as much as digits as its factorization.

51056143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51056143 is about 7145.3581435782. The cubic root of 51056143 is about 370.9790070049.

The spelling of 51056143 in words is "fifty-one million, fifty-six thousand, one hundred forty-three".