53328761 has 2 divisors, whose sum is σ = 53328762. Its totient is φ = 53328760.

The previous prime is 53328731. The next prime is 53328799. The reversal of 53328761 is 16782335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48038761 + 5290000 = 6931^2 + 2300^2 .

It is a cyclic number.

It is not a de Polignac number, because 53328761 - 2²² = 49134457 is a prime.

It is equal to p_3188582 and since 53328761 and 3188582 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53328731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26664380 + 26664381.

It is an arithmetic number, because the mean of its divisors is an integer number (26664381).

Almost surely, 2^53328761 is an apocalyptic number.

It is an amenable number.

53328761 is a deficient number, since it is larger than the sum of its proper divisors (1).

53328761 is an equidigital number, since it uses as much as digits as its factorization.

53328761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 53328761 is about 7302.6543804291. The cubic root of 53328761 is about 376.4036544190.

The spelling of 53328761 in words is "fifty-three million, three hundred twenty-eight thousand, seven hundred sixty-one".