57678085 has 4 divisors (see below), whose sum is σ = 69213708. Its totient is φ = 46142464.

The previous prime is 57678083. The next prime is 57678097. The reversal of 57678085 is 58087675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 50027329 = 2766^2 + 7073^2 .

It is a cyclic number.

It is not a de Polignac number, because 57678085 - 2¹ = 57678083 is a prime.

It is a super-2 number, since 2×57678085² = 6653522978534450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57678083) 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, 5767804 + ... + 5767813.

It is an arithmetic number, because the mean of its divisors is an integer number (17303427).

Almost surely, 2^57678085 is an apocalyptic number.

It is an amenable number.

57678085 is a deficient number, since it is larger than the sum of its proper divisors (11535623).

57678085 is a wasteful number, since it uses less digits than its factorization.

57678085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11535622.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 57678085 is about 7594.6089431912. The cubic root of 57678085 is about 386.3701894831.

The spelling of 57678085 in words is "fifty-seven million, six hundred seventy-eight thousand, eighty-five".