54208129 has 2 divisors, whose sum is σ = 54208130. Its totient is φ = 54208128.

The previous prime is 54208127. The next prime is 54208151. The reversal of 54208129 is 92180245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39942400 + 14265729 = 6320^2 + 3777^2 .

It is a cyclic number.

It is not a de Polignac number, because 54208129 - 2¹ = 54208127 is a prime.

Together with 54208127, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 54208129.

It is not a weakly prime, because it can be changed into another prime (54208123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27104064 + 27104065.

It is an arithmetic number, because the mean of its divisors is an integer number (27104065).

Almost surely, 2^54208129 is an apocalyptic number.

It is an amenable number.

54208129 is a deficient number, since it is larger than the sum of its proper divisors (1).

54208129 is an equidigital number, since it uses as much as digits as its factorization.

54208129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 54208129 is about 7362.6169939771. The cubic root of 54208129 is about 378.4612963269.

The spelling of 54208129 in words is "fifty-four million, two hundred eight thousand, one hundred twenty-nine".