51340057 has 2 divisors, whose sum is σ = 51340058. Its totient is φ = 51340056.

The previous prime is 51340049. The next prime is 51340073. The reversal of 51340057 is 75004315.

51340057 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., 51322896 + 17161 = 7164^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 51340057 - 2³ = 51340049 is a prime.

It is not a weakly prime, because it can be changed into another prime (51340087) 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, 25670028 + 25670029.

It is an arithmetic number, because the mean of its divisors is an integer number (25670029).

Almost surely, 2^51340057 is an apocalyptic number.

It is an amenable number.

51340057 is a deficient number, since it is larger than the sum of its proper divisors (1).

51340057 is an equidigital number, since it uses as much as digits as its factorization.

51340057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51340057 is about 7165.1976246298. The cubic root of 51340057 is about 371.6653854067.

The spelling of 51340057 in words is "fifty-one million, three hundred forty thousand, fifty-seven".