57164678 has 4 divisors (see below), whose sum is σ = 85747020. Its totient is φ = 28582338.

The previous prime is 57164677. The next prime is 57164689. The reversal of 57164678 is 87646175.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57164671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14291168 + ... + 14291171.

It is an arithmetic number, because the mean of its divisors is an integer number (21436755).

Almost surely, 2^57164678 is an apocalyptic number.

57164678 is a deficient number, since it is larger than the sum of its proper divisors (28582342).

57164678 is a wasteful number, since it uses less digits than its factorization.

57164678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28582341.

The product of its digits is 282240, while the sum is 44.

The square root of 57164678 is about 7560.7326364579. The cubic root of 57164678 is about 385.2203786916.

The spelling of 57164678 in words is "fifty-seven million, one hundred sixty-four thousand, six hundred seventy-eight".