53332261 has 2 divisors, whose sum is σ = 53332262. Its totient is φ = 53332260.

The previous prime is 53332243. The next prime is 53332303. The reversal of 53332261 is 16223335.

It is a happy number.

53332261 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., 44957025 + 8375236 = 6705^2 + 2894^2 .

It is a cyclic number.

It is not a de Polignac number, because 53332261 - 2¹¹ = 53330213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53332241) 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, 26666130 + 26666131.

It is an arithmetic number, because the mean of its divisors is an integer number (26666131).

Almost surely, 2^53332261 is an apocalyptic number.

It is an amenable number.

53332261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53332261 is an equidigital number, since it uses as much as digits as its factorization.

53332261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 53332261 is about 7302.8940153887. The cubic root of 53332261 is about 376.4118887747.

Adding to 53332261 its reverse (16223335), we get a palindrome (69555596).

The spelling of 53332261 in words is "fifty-three million, three hundred thirty-two thousand, two hundred sixty-one".