57319609 has 4 divisors (see below), whose sum is σ = 57559680. Its totient is φ = 57079540.

The previous prime is 57319501. The next prime is 57319643. The reversal of 57319609 is 90691375.

57319609 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 a de Polignac number, because none of the positive numbers 2^k-57319609 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57319309) 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, 119677 + ... + 120154.

It is an arithmetic number, because the mean of its divisors is an integer number (14389920).

Almost surely, 2^57319609 is an apocalyptic number.

It is an amenable number.

57319609 is a deficient number, since it is larger than the sum of its proper divisors (240071).

57319609 is a wasteful number, since it uses less digits than its factorization.

57319609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240070.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 57319609 is about 7570.9714700295. The cubic root of 57319609 is about 385.5680802399.

The spelling of 57319609 in words is "fifty-seven million, three hundred nineteen thousand, six hundred nine".