51023435651 has 2 divisors, whose sum is σ = 51023435652. Its totient is φ = 51023435650.

The previous prime is 51023435641. The next prime is 51023435653. The reversal of 51023435651 is 15653432015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51023435651 - 2¹⁴ = 51023419267 is a prime.

Together with 51023435653, 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 (51023435653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511717825 + 25511717826.

It is an arithmetic number, because the mean of its divisors is an integer number (25511717826).

Almost surely, 2^51023435651 is an apocalyptic number.

51023435651 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023435651 is an equidigital number, since it uses as much as digits as its factorization.

51023435651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 51023435651 its reverse (15653432015), we get a palindrome (66676867666).

The spelling of 51023435651 in words is "fifty-one billion, twenty-three million, four hundred thirty-five thousand, six hundred fifty-one".