52782230681 has 2 divisors, whose sum is σ = 52782230682. Its totient is φ = 52782230680.

The previous prime is 52782230671. The next prime is 52782230783. The reversal of 52782230681 is 18603228725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43355568400 + 9426662281 = 208220^2 + 97091^2 .

It is a cyclic number.

It is not a de Polignac number, because 52782230681 - 2⁶ = 52782230617 is a prime.

It is a super-2 number, since 2×52782230681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52782230671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26391115340 + 26391115341.

It is an arithmetic number, because the mean of its divisors is an integer number (26391115341).

Almost surely, 2^52782230681 is an apocalyptic number.

It is an amenable number.

52782230681 is a deficient number, since it is larger than the sum of its proper divisors (1).

52782230681 is an equidigital number, since it uses as much as digits as its factorization.

52782230681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 52782230681 in words is "fifty-two billion, seven hundred eighty-two million, two hundred thirty thousand, six hundred eighty-one".