51549527927 has 2 divisors, whose sum is σ = 51549527928. Its totient is φ = 51549527926.

The previous prime is 51549527917. The next prime is 51549527951. The reversal of 51549527927 is 72972594515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51549527927 - 2⁸ = 51549527671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51549527917) 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, 25774763963 + 25774763964.

It is an arithmetic number, because the mean of its divisors is an integer number (25774763964).

Almost surely, 2^51549527927 is an apocalyptic number.

51549527927 is a deficient number, since it is larger than the sum of its proper divisors (1).

51549527927 is an equidigital number, since it uses as much as digits as its factorization.

51549527927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938000, while the sum is 56.

The spelling of 51549527927 in words is "fifty-one billion, five hundred forty-nine million, five hundred twenty-seven thousand, nine hundred twenty-seven".