51938143 has 2 divisors, whose sum is σ = 51938144. Its totient is φ = 51938142.

The previous prime is 51938137. The next prime is 51938147. The reversal of 51938143 is 34183915.

51938143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51938143 - 2⁹ = 51937631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51938099 and 51938108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51938147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25969071 + 25969072.

It is an arithmetic number, because the mean of its divisors is an integer number (25969072).

Almost surely, 2^51938143 is an apocalyptic number.

51938143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51938143 is an equidigital number, since it uses as much as digits as its factorization.

51938143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 51938143 is about 7206.8122634074. The cubic root of 51938143 is about 373.1030557123.

The spelling of 51938143 in words is "fifty-one million, nine hundred thirty-eight thousand, one hundred forty-three".