51144377 has 2 divisors, whose sum is σ = 51144378. Its totient is φ = 51144376.

The previous prime is 51144367. The next prime is 51144391. The reversal of 51144377 is 77344115.

51144377 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 can be written as a sum of positive squares in only one way, i.e., 48846121 + 2298256 = 6989^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 51144377 - 2⁴ = 51144361 is a prime.

It is not a weakly prime, because it can be changed into another prime (51144307) 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, 25572188 + 25572189.

It is an arithmetic number, because the mean of its divisors is an integer number (25572189).

Almost surely, 2^51144377 is an apocalyptic number.

It is an amenable number.

51144377 is a deficient number, since it is larger than the sum of its proper divisors (1).

51144377 is an equidigital number, since it uses as much as digits as its factorization.

51144377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 51144377 is about 7151.5296965055. The cubic root of 51144377 is about 371.1925896858.

The spelling of 51144377 in words is "fifty-one million, one hundred forty-four thousand, three hundred seventy-seven".