57448129 has 4 divisors (see below), whose sum is σ = 58784176. Its totient is φ = 56112084.

The previous prime is 57448121. The next prime is 57448141. The reversal of 57448129 is 92184475.

57448129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57448129 - 2³ = 57448121 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 57448091 and 57448100.

It is not an unprimeable number, because it can be changed into a prime (57448121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667959 + ... + 668044.

It is an arithmetic number, because the mean of its divisors is an integer number (14696044).

Almost surely, 2^57448129 is an apocalyptic number.

It is an amenable number.

57448129 is a deficient number, since it is larger than the sum of its proper divisors (1336047).

57448129 is a wasteful number, since it uses less digits than its factorization.

57448129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336046.

The product of its digits is 80640, while the sum is 40.

The square root of 57448129 is about 7579.4543998892. The cubic root of 57448129 is about 385.8560341711.

The spelling of 57448129 in words is "fifty-seven million, four hundred forty-eight thousand, one hundred twenty-nine".