52543134491 has 2 divisors, whose sum is σ = 52543134492. Its totient is φ = 52543134490.

The previous prime is 52543134367. The next prime is 52543134493. The reversal of 52543134491 is 19443134525.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52543134491 is a prime.

It is a Sophie Germain prime.

Together with 52543134493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52543134493) 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, 26271567245 + 26271567246.

It is an arithmetic number, because the mean of its divisors is an integer number (26271567246).

Almost surely, 2^52543134491 is an apocalyptic number.

52543134491 is a deficient number, since it is larger than the sum of its proper divisors (1).

52543134491 is an equidigital number, since it uses as much as digits as its factorization.

52543134491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The spelling of 52543134491 in words is "fifty-two billion, five hundred forty-three million, one hundred thirty-four thousand, four hundred ninety-one".