51105500029 has 2 divisors, whose sum is σ = 51105500030. Its totient is φ = 51105500028.

The previous prime is 51105499987. The next prime is 51105500053. The reversal of 51105500029 is 92000550115.

51105500029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39806235225 + 11299264804 = 199515^2 + 106298^2 .

It is a cyclic number.

It is not a de Polignac number, because 51105500029 - 2¹⁷ = 51105368957 is a prime.

It is a super-2 number, since 2×51105500029² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51105500099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552750014 + 25552750015.

It is an arithmetic number, because the mean of its divisors is an integer number (25552750015).

Almost surely, 2^51105500029 is an apocalyptic number.

It is an amenable number.

51105500029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51105500029 is an equidigital number, since it uses as much as digits as its factorization.

51105500029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 28.

The spelling of 51105500029 in words is "fifty-one billion, one hundred five million, five hundred thousand, twenty-nine".