51382787 has 2 divisors, whose sum is σ = 51382788. Its totient is φ = 51382786.

The previous prime is 51382763. The next prime is 51382813. The reversal of 51382787 is 78728315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51382787 - 2¹⁶ = 51317251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51382757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25691393 + 25691394.

It is an arithmetic number, because the mean of its divisors is an integer number (25691394).

Almost surely, 2^51382787 is an apocalyptic number.

51382787 is a deficient number, since it is larger than the sum of its proper divisors (1).

51382787 is an equidigital number, since it uses as much as digits as its factorization.

51382787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 41.

The square root of 51382787 is about 7168.1787784625. The cubic root of 51382787 is about 371.7684683854.

The spelling of 51382787 in words is "fifty-one million, three hundred eighty-two thousand, seven hundred eighty-seven".