51273004831 has 2 divisors, whose sum is σ = 51273004832. Its totient is φ = 51273004830.

The previous prime is 51273004829. The next prime is 51273004837. The reversal of 51273004831 is 13840037215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51273004831 - 2¹ = 51273004829 is a prime.

It is a super-2 number, since 2×51273004831² (a number of 22 digits) contains 22 as substring.

Together with 51273004829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51273004837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25636502415 + 25636502416.

It is an arithmetic number, because the mean of its divisors is an integer number (25636502416).

Almost surely, 2^51273004831 is an apocalyptic number.

51273004831 is a deficient number, since it is larger than the sum of its proper divisors (1).

51273004831 is an equidigital number, since it uses as much as digits as its factorization.

51273004831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 51273004831 in words is "fifty-one billion, two hundred seventy-three million, four thousand, eight hundred thirty-one".