52040561 has 2 divisors, whose sum is σ = 52040562. Its totient is φ = 52040560.

The previous prime is 52040509. The next prime is 52040567. The reversal of 52040561 is 16504025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48163600 + 3876961 = 6940^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 52040561 - 2⁶ = 52040497 is a prime.

It is not a weakly prime, because it can be changed into another prime (52040567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26020280 + 26020281.

It is an arithmetic number, because the mean of its divisors is an integer number (26020281).

Almost surely, 2^52040561 is an apocalyptic number.

It is an amenable number.

52040561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52040561 is an equidigital number, since it uses as much as digits as its factorization.

52040561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52040561 is about 7213.9144020428. The cubic root of 52040561 is about 373.3481381423.

Adding to 52040561 its reverse (16504025), we get a palindrome (68544586).

The spelling of 52040561 in words is "fifty-two million, forty thousand, five hundred sixty-one".