57180005 has 4 divisors (see below), whose sum is σ = 68616012. Its totient is φ = 45744000.

The previous prime is 57179989. The next prime is 57180017. The reversal of 57180005 is 50008175.

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 8305924 + 48874081 = 2882^2 + 6991^2 .

It is not a de Polignac number, because 57180005 - 2⁴ = 57179989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5717996 + ... + 5718005.

It is an arithmetic number, because the mean of its divisors is an integer number (17154003).

Almost surely, 2^57180005 is an apocalyptic number.

It is an amenable number.

57180005 is a deficient number, since it is larger than the sum of its proper divisors (11436007).

57180005 is a wasteful number, since it uses less digits than its factorization.

57180005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436006.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 57180005 is about 7561.7461607753. The cubic root of 57180005 is about 385.2548040590.

The spelling of 57180005 in words is "fifty-seven million, one hundred eighty thousand, five".