51280763 has 2 divisors, whose sum is σ = 51280764. Its totient is φ = 51280762.

The previous prime is 51280759. The next prime is 51280769. The reversal of 51280763 is 36708215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51280763 - 2² = 51280759 is a prime.

It is not a weakly prime, because it can be changed into another prime (51280769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25640381 + 25640382.

It is an arithmetic number, because the mean of its divisors is an integer number (25640382).

Almost surely, 2^51280763 is an apocalyptic number.

51280763 is a deficient number, since it is larger than the sum of its proper divisors (1).

51280763 is an equidigital number, since it uses as much as digits as its factorization.

51280763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 51280763 is about 7161.0587904304. The cubic root of 51280763 is about 371.5222482022.

Adding to 51280763 its reverse (36708215), we get a palindrome (87988978).

The spelling of 51280763 in words is "fifty-one million, two hundred eighty thousand, seven hundred sixty-three".