57288219 has 4 divisors (see below), whose sum is σ = 76384296. Its totient is φ = 38192144.

The previous prime is 57288199. The next prime is 57288223. The reversal of 57288219 is 91288275.

57288219 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.

It is a cyclic number.

It is not a de Polignac number, because 57288219 - 2⁹ = 57287707 is a prime.

It is a super-2 number, since 2×57288219² = 6563880072383922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57288269) 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, 9548034 + ... + 9548039.

It is an arithmetic number, because the mean of its divisors is an integer number (19096074).

Almost surely, 2^57288219 is an apocalyptic number.

57288219 is a deficient number, since it is larger than the sum of its proper divisors (19096077).

57288219 is a wasteful number, since it uses less digits than its factorization.

57288219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19096076.

The product of its digits is 80640, while the sum is 42.

The square root of 57288219 is about 7568.8981364529. The cubic root of 57288219 is about 385.4976843652.

The spelling of 57288219 in words is "fifty-seven million, two hundred eighty-eight thousand, two hundred nineteen".