51512154329 has 2 divisors, whose sum is σ = 51512154330. Its totient is φ = 51512154328.

The previous prime is 51512154293. The next prime is 51512154341. The reversal of 51512154329 is 92345121515.

It is a happy number.

Together with previous prime (51512154293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35705881600 + 15806272729 = 188960^2 + 125723^2 .

It is a cyclic number.

It is not a de Polignac number, because 51512154329 - 2⁸ = 51512154073 is a prime.

It is a super-2 number, since 2×51512154329² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51512154292 and 51512154301.

It is not a weakly prime, because it can be changed into another prime (51512154389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25756077164 + 25756077165.

It is an arithmetic number, because the mean of its divisors is an integer number (25756077165).

Almost surely, 2^51512154329 is an apocalyptic number.

It is an amenable number.

51512154329 is a deficient number, since it is larger than the sum of its proper divisors (1).

51512154329 is an equidigital number, since it uses as much as digits as its factorization.

51512154329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 38.

The spelling of 51512154329 in words is "fifty-one billion, five hundred twelve million, one hundred fifty-four thousand, three hundred twenty-nine".