52000561 has 2 divisors, whose sum is σ = 52000562. Its totient is φ = 52000560.

The previous prime is 52000541. The next prime is 52000583. The reversal of 52000561 is 16500025.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 1874161 = 7080^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 52000561 - 2¹⁹ = 51476273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52000541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26000280 + 26000281.

It is an arithmetic number, because the mean of its divisors is an integer number (26000281).

Almost surely, 2^52000561 is an apocalyptic number.

It is an amenable number.

52000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52000561 is an equidigital number, since it uses as much as digits as its factorization.

52000561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 52000561 is about 7211.1414491743. The cubic root of 52000561 is about 373.2524579453.

Adding to 52000561 its reverse (16500025), we get a palindrome (68500586).

The spelling of 52000561 in words is "fifty-two million, five hundred sixty-one", and thus it is an aban number.