51253423511 has 2 divisors, whose sum is σ = 51253423512. Its totient is φ = 51253423510.

The previous prime is 51253423493. The next prime is 51253423513. The reversal of 51253423511 is 11532435215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51253423511 - 2¹⁰ = 51253422487 is a prime.

Together with 51253423513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51253423513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25626711755 + 25626711756.

It is an arithmetic number, because the mean of its divisors is an integer number (25626711756).

Almost surely, 2^51253423511 is an apocalyptic number.

51253423511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51253423511 is an equidigital number, since it uses as much as digits as its factorization.

51253423511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

Adding to 51253423511 its reverse (11532435215), we get a palindrome (62785858726).

The spelling of 51253423511 in words is "fifty-one billion, two hundred fifty-three million, four hundred twenty-three thousand, five hundred eleven".