51044115523 has 2 divisors, whose sum is σ = 51044115524. Its totient is φ = 51044115522.

The previous prime is 51044115509. The next prime is 51044115539. The reversal of 51044115523 is 32551144015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51044115523 - 2¹⁷ = 51043984451 is a prime.

It is not a weakly prime, because it can be changed into another prime (51044115503) 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, 25522057761 + 25522057762.

It is an arithmetic number, because the mean of its divisors is an integer number (25522057762).

Almost surely, 2^51044115523 is an apocalyptic number.

51044115523 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044115523 is an equidigital number, since it uses as much as digits as its factorization.

51044115523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 51044115523 its reverse (32551144015), we get a palindrome (83595259538).

The spelling of 51044115523 in words is "fifty-one billion, forty-four million, one hundred fifteen thousand, five hundred twenty-three".