51426017 has 2 divisors, whose sum is σ = 51426018. Its totient is φ = 51426016.

The previous prime is 51425987. The next prime is 51426031. The reversal of 51426017 is 71062415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38241856 + 13184161 = 6184^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 51426017 - 2¹⁰ = 51424993 is a prime.

It is not a weakly prime, because it can be changed into another prime (51426047) 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, 25713008 + 25713009.

It is an arithmetic number, because the mean of its divisors is an integer number (25713009).

Almost surely, 2^51426017 is an apocalyptic number.

It is an amenable number.

51426017 is a deficient number, since it is larger than the sum of its proper divisors (1).

51426017 is an equidigital number, since it uses as much as digits as its factorization.

51426017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51426017 is about 7171.1935547718. The cubic root of 51426017 is about 371.8726994373.

The spelling of 51426017 in words is "fifty-one million, four hundred twenty-six thousand, seventeen".