53443235032609 has 2 divisors, whose sum is σ = 53443235032610. Its totient is φ = 53443235032608.

The previous prime is 53443235032553. The next prime is 53443235032667. The reversal of 53443235032609 is 90623053234435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31822855380625 + 21620379651984 = 5641175^2 + 4649772^2 .

It is a cyclic number.

It is not a de Polignac number, because 53443235032609 - 2²¹ = 53443232935457 is a prime.

It is not a weakly prime, because it can be changed into another prime (53443235033609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26721617516304 + 26721617516305.

It is an arithmetic number, because the mean of its divisors is an integer number (26721617516305).

Almost surely, 2^{53443235032609} is an apocalyptic number.

It is an amenable number.

53443235032609 is a deficient number, since it is larger than the sum of its proper divisors (1).

53443235032609 is an equidigital number, since it uses as much as digits as its factorization.

53443235032609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 49.

The spelling of 53443235032609 in words is "fifty-three trillion, four hundred forty-three billion, two hundred thirty-five million, thirty-two thousand, six hundred nine".