51944147 has 2 divisors, whose sum is σ = 51944148. Its totient is φ = 51944146.

The previous prime is 51944117. The next prime is 51944173. The reversal of 51944147 is 74144915.

51944147 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 51944147 - 2¹⁰ = 51943123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51944107) 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, 25972073 + 25972074.

It is an arithmetic number, because the mean of its divisors is an integer number (25972074).

Almost surely, 2^51944147 is an apocalyptic number.

51944147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51944147 is an equidigital number, since it uses as much as digits as its factorization.

51944147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 51944147 is about 7207.2288016963. The cubic root of 51944147 is about 373.1174319446.

The spelling of 51944147 in words is "fifty-one million, nine hundred forty-four thousand, one hundred forty-seven".