51455143 has 2 divisors, whose sum is σ = 51455144. Its totient is φ = 51455142.

The previous prime is 51455119. The next prime is 51455167. The reversal of 51455143 is 34155415.

It is a balanced prime because it is at equal distance from previous prime (51455119) and next prime (51455167).

It is a cyclic number.

It is not a de Polignac number, because 51455143 - 2¹³ = 51446951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51455543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727571 + 25727572.

It is an arithmetic number, because the mean of its divisors is an integer number (25727572).

Almost surely, 2^51455143 is an apocalyptic number.

51455143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455143 is an equidigital number, since it uses as much as digits as its factorization.

51455143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 28.

The square root of 51455143 is about 7173.2240310756. The cubic root of 51455143 is about 371.9428916650.

The spelling of 51455143 in words is "fifty-one million, four hundred fifty-five thousand, one hundred forty-three".