52385561 has 2 divisors, whose sum is σ = 52385562. Its totient is φ = 52385560.

The previous prime is 52385539. The next prime is 52385573. The reversal of 52385561 is 16558325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51208336 + 1177225 = 7156^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 52385561 - 2⁶ = 52385497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52385521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26192780 + 26192781.

It is an arithmetic number, because the mean of its divisors is an integer number (26192781).

Almost surely, 2^52385561 is an apocalyptic number.

It is an amenable number.

52385561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52385561 is an equidigital number, since it uses as much as digits as its factorization.

52385561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 52385561 is about 7237.7870236696. The cubic root of 52385561 is about 374.1713518912.

The spelling of 52385561 in words is "fifty-two million, three hundred eighty-five thousand, five hundred sixty-one".