51032143 has 2 divisors, whose sum is σ = 51032144. Its totient is φ = 51032142.

The previous prime is 51032087. The next prime is 51032153. The reversal of 51032143 is 34123015.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51032143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51032143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51032153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516071 + 25516072.

It is an arithmetic number, because the mean of its divisors is an integer number (25516072).

Almost surely, 2^51032143 is an apocalyptic number.

51032143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032143 is an equidigital number, since it uses as much as digits as its factorization.

51032143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 51032143 is about 7143.6785342007. The cubic root of 51032143 is about 370.9208690996.

Adding to 51032143 its reverse (34123015), we get a palindrome (85155158).

The spelling of 51032143 in words is "fifty-one million, thirty-two thousand, one hundred forty-three".