52517561 has 2 divisors, whose sum is σ = 52517562. Its totient is φ = 52517560.

The previous prime is 52517527. The next prime is 52517623. The reversal of 52517561 is 16571525.

52517561 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., 52475536 + 42025 = 7244^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 52517561 - 2⁶ = 52517497 is a prime.

It is not a weakly prime, because it can be changed into another prime (52517161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26258780 + 26258781.

It is an arithmetic number, because the mean of its divisors is an integer number (26258781).

Almost surely, 2^52517561 is an apocalyptic number.

It is an amenable number.

52517561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52517561 is an equidigital number, since it uses as much as digits as its factorization.

52517561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 32.

The square root of 52517561 is about 7246.9000959031. The cubic root of 52517561 is about 374.4853645759.

The spelling of 52517561 in words is "fifty-two million, five hundred seventeen thousand, five hundred sixty-one".