57116819 has 4 divisors (see below), whose sum is σ = 57137640. Its totient is φ = 57096000.

The previous prime is 57116809. The next prime is 57116833. The reversal of 57116819 is 91861175.

57116819 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 57116819 - 2¹⁶ = 57051283 is a prime.

It is a super-2 number, since 2×57116819² = 6524662025357522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57116809) 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, 5534 + ... + 12035.

It is an arithmetic number, because the mean of its divisors is an integer number (14284410).

Almost surely, 2^57116819 is an apocalyptic number.

57116819 is a deficient number, since it is larger than the sum of its proper divisors (20821).

57116819 is a wasteful number, since it uses less digits than its factorization.

57116819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820.

The product of its digits is 15120, while the sum is 38.

The square root of 57116819 is about 7557.5670026802. The cubic root of 57116819 is about 385.1128448661.

The spelling of 57116819 in words is "fifty-seven million, one hundred sixteen thousand, eight hundred nineteen".