57280117 has 4 divisors (see below), whose sum is σ = 60294880. Its totient is φ = 54265356.

The previous prime is 57280103. The next prime is 57280129. The reversal of 57280117 is 71108275.

It is a happy number.

57280117 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 57280117 - 2¹¹ = 57278069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57280177) 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, 1507353 + ... + 1507390.

It is an arithmetic number, because the mean of its divisors is an integer number (15073720).

Almost surely, 2^57280117 is an apocalyptic number.

It is an amenable number.

57280117 is a deficient number, since it is larger than the sum of its proper divisors (3014763).

57280117 is a wasteful number, since it uses less digits than its factorization.

57280117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014762.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 57280117 is about 7568.3629009185. The cubic root of 57280117 is about 385.4795104745.

The spelling of 57280117 in words is "fifty-seven million, two hundred eighty thousand, one hundred seventeen".