51802582361 has 2 divisors, whose sum is σ = 51802582362. Its totient is φ = 51802582360.

The previous prime is 51802582303. The next prime is 51802582369. The reversal of 51802582361 is 16328520815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50913409600 + 889172761 = 225640^2 + 29819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51802582361 is a prime.

It is not a weakly prime, because it can be changed into another prime (51802582369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25901291180 + 25901291181.

It is an arithmetic number, because the mean of its divisors is an integer number (25901291181).

Almost surely, 2^51802582361 is an apocalyptic number.

It is an amenable number.

51802582361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51802582361 is an equidigital number, since it uses as much as digits as its factorization.

51802582361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 51802582361 in words is "fifty-one billion, eight hundred two million, five hundred eighty-two thousand, three hundred sixty-one".