52205761 has 2 divisors, whose sum is σ = 52205762. Its totient is φ = 52205760.

The previous prime is 52205753. The next prime is 52205773. The reversal of 52205761 is 16750225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39137536 + 13068225 = 6256^2 + 3615^2 .

It is a cyclic number.

It is not a de Polignac number, because 52205761 - 2³ = 52205753 is a prime.

It is not a weakly prime, because it can be changed into another prime (52205701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26102880 + 26102881.

It is an arithmetic number, because the mean of its divisors is an integer number (26102881).

Almost surely, 2^52205761 is an apocalyptic number.

It is an amenable number.

52205761 is a deficient number, since it is larger than the sum of its proper divisors (1).

52205761 is an equidigital number, since it uses as much as digits as its factorization.

52205761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52205761 is about 7225.3554237837. The cubic root of 52205761 is about 373.7427788003.

Adding to 52205761 its reverse (16750225), we get a palindrome (68955986).

The spelling of 52205761 in words is "fifty-two million, two hundred five thousand, seven hundred sixty-one".