57031717 has 4 divisors (see below), whose sum is σ = 58358080. Its totient is φ = 55705356.

The previous prime is 57031627. The next prime is 57031721. The reversal of 57031717 is 71713075.

57031717 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 57031717 - 2⁷ = 57031589 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 (57031747) 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, 663117 + ... + 663202.

It is an arithmetic number, because the mean of its divisors is an integer number (14589520).

Almost surely, 2^57031717 is an apocalyptic number.

It is an amenable number.

57031717 is a deficient number, since it is larger than the sum of its proper divisors (1326363).

57031717 is a wasteful number, since it uses less digits than its factorization.

57031717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326362.

The product of its (nonzero) digits is 5145, while the sum is 31.

The square root of 57031717 is about 7551.9346527893. The cubic root of 57031717 is about 384.9214817108.

The spelling of 57031717 in words is "fifty-seven million, thirty-one thousand, seven hundred seventeen".