51452143 has 2 divisors, whose sum is σ = 51452144. Its totient is φ = 51452142.

The previous prime is 51452129. The next prime is 51452201. The reversal of 51452143 is 34125415.

It is a happy number.

51452143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51452143 - 2⁵ = 51452111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51455143) 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, 25726071 + 25726072.

It is an arithmetic number, because the mean of its divisors is an integer number (25726072).

Almost surely, 2^51452143 is an apocalyptic number.

51452143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51452143 is an equidigital number, since it uses as much as digits as its factorization.

51452143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 51452143 is about 7173.0149170345. The cubic root of 51452143 is about 371.9356630364.

Adding to 51452143 its reverse (34125415), we get a palindrome (85577558).

The spelling of 51452143 in words is "fifty-one million, four hundred fifty-two thousand, one hundred forty-three".