51731027 has 2 divisors, whose sum is σ = 51731028. Its totient is φ = 51731026.

The previous prime is 51731011. The next prime is 51731039. The reversal of 51731027 is 72013715.

51731027 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 is a cyclic number.

It is not a de Polignac number, because 51731027 - 2⁴ = 51731011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51730987 and 51731005.

It is not a weakly prime, because it can be changed into another prime (51731047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25865513 + 25865514.

It is an arithmetic number, because the mean of its divisors is an integer number (25865514).

Almost surely, 2^51731027 is an apocalyptic number.

51731027 is a deficient number, since it is larger than the sum of its proper divisors (1).

51731027 is an equidigital number, since it uses as much as digits as its factorization.

51731027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51731027 is about 7192.4284494182. The cubic root of 51731027 is about 372.6064485649.

The spelling of 51731027 in words is "fifty-one million, seven hundred thirty-one thousand, twenty-seven".