51287459 has 2 divisors, whose sum is σ = 51287460. Its totient is φ = 51287458.

The previous prime is 51287449. The next prime is 51287471. The reversal of 51287459 is 95478215.

51287459 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 is a cyclic number.

It is not a de Polignac number, because 51287459 - 2¹⁶ = 51221923 is a prime.

It is not a weakly prime, because it can be changed into another prime (51287429) 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, 25643729 + 25643730.

It is an arithmetic number, because the mean of its divisors is an integer number (25643730).

Almost surely, 2^51287459 is an apocalyptic number.

51287459 is a deficient number, since it is larger than the sum of its proper divisors (1).

51287459 is an equidigital number, since it uses as much as digits as its factorization.

51287459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 51287459 is about 7161.5263037987. The cubic root of 51287459 is about 371.5384180390.

The spelling of 51287459 in words is "fifty-one million, two hundred eighty-seven thousand, four hundred fifty-nine".