51795771031 has 2 divisors, whose sum is σ = 51795771032. Its totient is φ = 51795771030.

The previous prime is 51795771023. The next prime is 51795771067. The reversal of 51795771031 is 13017759715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51795771031 - 2³ = 51795771023 is a prime.

It is a super-2 number, since 2×51795771031² (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 (51795771331) 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, 25897885515 + 25897885516.

It is an arithmetic number, because the mean of its divisors is an integer number (25897885516).

Almost surely, 2^51795771031 is an apocalyptic number.

51795771031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51795771031 is an equidigital number, since it uses as much as digits as its factorization.

51795771031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 231525, while the sum is 46.

The spelling of 51795771031 in words is "fifty-one billion, seven hundred ninety-five million, seven hundred seventy-one thousand, thirty-one".