57108819 has 4 divisors (see below), whose sum is σ = 76145096. Its totient is φ = 38072544.

The previous prime is 57108817. The next prime is 57108827. The reversal of 57108819 is 91880175.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57108819 - 2¹ = 57108817 is a prime.

It is a super-2 number, since 2×57108819² = 6522834415149522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57108817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9518134 + ... + 9518139.

It is an arithmetic number, because the mean of its divisors is an integer number (19036274).

Almost surely, 2^57108819 is an apocalyptic number.

57108819 is a deficient number, since it is larger than the sum of its proper divisors (19036277).

57108819 is a wasteful number, since it uses less digits than its factorization.

57108819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19036276.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 57108819 is about 7557.0377132842. The cubic root of 57108819 is about 385.0948639009.

The spelling of 57108819 in words is "fifty-seven million, one hundred eight thousand, eight hundred nineteen".