53135304243991 has 2 divisors, whose sum is σ = 53135304243992. Its totient is φ = 53135304243990.

The previous prime is 53135304243947. The next prime is 53135304244049. The reversal of 53135304243991 is 19934240353135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53135304243991 - 2²⁵ = 53135270689559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53135304243391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26567652121995 + 26567652121996.

It is an arithmetic number, because the mean of its divisors is an integer number (26567652121996).

Almost surely, 2^{53135304243991} is an apocalyptic number.

53135304243991 is a deficient number, since it is larger than the sum of its proper divisors (1).

53135304243991 is an equidigital number, since it uses as much as digits as its factorization.

53135304243991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5248800, while the sum is 52.

The spelling of 53135304243991 in words is "fifty-three trillion, one hundred thirty-five billion, three hundred four million, two hundred forty-three thousand, nine hundred ninety-one".