54451729 has 2 divisors, whose sum is σ = 54451730. Its totient is φ = 54451728.

The previous prime is 54451699. The next prime is 54451811. The reversal of 54451729 is 92715445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52533504 + 1918225 = 7248^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 54451729 - 2⁷ = 54451601 is a prime.

It is not a weakly prime, because it can be changed into another prime (54451129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27225864 + 27225865.

It is an arithmetic number, because the mean of its divisors is an integer number (27225865).

Almost surely, 2^54451729 is an apocalyptic number.

It is an amenable number.

54451729 is a deficient number, since it is larger than the sum of its proper divisors (1).

54451729 is an equidigital number, since it uses as much as digits as its factorization.

54451729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 54451729 is about 7379.1414812294. The cubic root of 54451729 is about 379.0273579015.

The spelling of 54451729 in words is "fifty-four million, four hundred fifty-one thousand, seven hundred twenty-nine".