52646689 has 2 divisors, whose sum is σ = 52646690. Its totient is φ = 52646688.

The previous prime is 52646683. The next prime is 52646717. The reversal of 52646689 is 98664625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 11664 = 7255^2 + 108^2 .

It is a cyclic number.

It is not a de Polignac number, because 52646689 - 2¹⁹ = 52122401 is a prime.

It is not a weakly prime, because it can be changed into another prime (52646683) 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, 26323344 + 26323345.

It is an arithmetic number, because the mean of its divisors is an integer number (26323345).

Almost surely, 2^52646689 is an apocalyptic number.

It is an amenable number.

52646689 is a deficient number, since it is larger than the sum of its proper divisors (1).

52646689 is an equidigital number, since it uses as much as digits as its factorization.

52646689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 52646689 is about 7255.8038148781. The cubic root of 52646689 is about 374.7920363947.

It can be divided in two parts, 52646 and 689, that added together give a palindrome (53335).

The spelling of 52646689 in words is "fifty-two million, six hundred forty-six thousand, six hundred eighty-nine".