51549234511 has 2 divisors, whose sum is σ = 51549234512. Its totient is φ = 51549234510.

The previous prime is 51549234467. The next prime is 51549234557. The reversal of 51549234511 is 11543294515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51549234511 - 2²³ = 51540845903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51549234211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25774617255 + 25774617256.

It is an arithmetic number, because the mean of its divisors is an integer number (25774617256).

Almost surely, 2^51549234511 is an apocalyptic number.

51549234511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51549234511 is an equidigital number, since it uses as much as digits as its factorization.

51549234511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 40.

The spelling of 51549234511 in words is "fifty-one billion, five hundred forty-nine million, two hundred thirty-four thousand, five hundred eleven".