53117267443 has 2 divisors, whose sum is σ = 53117267444. Its totient is φ = 53117267442.

The previous prime is 53117267393. The next prime is 53117267447. The reversal of 53117267443 is 34476271135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53117267443 - 2⁹ = 53117266931 is a prime.

It is a super-2 number, since 2×53117267443² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53117267443.

It is not a weakly prime, because it can be changed into another prime (53117267447) 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, 26558633721 + 26558633722.

It is an arithmetic number, because the mean of its divisors is an integer number (26558633722).

Almost surely, 2^53117267443 is an apocalyptic number.

53117267443 is a deficient number, since it is larger than the sum of its proper divisors (1).

53117267443 is an equidigital number, since it uses as much as digits as its factorization.

53117267443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The spelling of 53117267443 in words is "fifty-three billion, one hundred seventeen million, two hundred sixty-seven thousand, four hundred forty-three".