54211729729 has 2 divisors, whose sum is σ = 54211729730. Its totient is φ = 54211729728.

The previous prime is 54211729711. The next prime is 54211729763. The reversal of 54211729729 is 92792711245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44446337329 + 9765392400 = 210823^2 + 98820^2 .

It is a cyclic number.

It is not a de Polignac number, because 54211729729 - 2¹³ = 54211721537 is a prime.

It is not a weakly prime, because it can be changed into another prime (54211729799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27105864864 + 27105864865.

It is an arithmetic number, because the mean of its divisors is an integer number (27105864865).

Almost surely, 2^54211729729 is an apocalyptic number.

It is an amenable number.

54211729729 is a deficient number, since it is larger than the sum of its proper divisors (1).

54211729729 is an equidigital number, since it uses as much as digits as its factorization.

54211729729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The spelling of 54211729729 in words is "fifty-four billion, two hundred eleven million, seven hundred twenty-nine thousand, seven hundred twenty-nine".