52530277561 has 2 divisors, whose sum is σ = 52530277562. Its totient is φ = 52530277560.

The previous prime is 52530277543. The next prime is 52530277567. The reversal of 52530277561 is 16577203525.

52530277561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50967577600 + 1562699961 = 225760^2 + 39531^2 .

It is a cyclic number.

It is not a de Polignac number, because 52530277561 - 2¹¹ = 52530275513 is a prime.

It is not a weakly prime, because it can be changed into another prime (52530277567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26265138780 + 26265138781.

It is an arithmetic number, because the mean of its divisors is an integer number (26265138781).

Almost surely, 2^52530277561 is an apocalyptic number.

It is an amenable number.

52530277561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52530277561 is an equidigital number, since it uses as much as digits as its factorization.

52530277561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 52530277561 in words is "fifty-two billion, five hundred thirty million, two hundred seventy-seven thousand, five hundred sixty-one".