53304313681 has 2 divisors, whose sum is σ = 53304313682. Its totient is φ = 53304313680.

The previous prime is 53304313607. The next prime is 53304313859. The reversal of 53304313681 is 18631340335.

53304313681 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 can be written as a sum of positive squares in only one way, i.e., 52422223681 + 882090000 = 228959^2 + 29700^2 .

It is a cyclic number.

It is not a de Polignac number, because 53304313681 - 2⁹ = 53304313169 is a prime.

It is a super-2 number, since 2×53304313681² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53304313681.

It is not a weakly prime, because it can be changed into another prime (53304313081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26652156840 + 26652156841.

It is an arithmetic number, because the mean of its divisors is an integer number (26652156841).

Almost surely, 2^53304313681 is an apocalyptic number.

It is an amenable number.

53304313681 is a deficient number, since it is larger than the sum of its proper divisors (1).

53304313681 is an equidigital number, since it uses as much as digits as its factorization.

53304313681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 53304313681 in words is "fifty-three billion, three hundred four million, three hundred thirteen thousand, six hundred eighty-one".