57117118 has 4 divisors (see below), whose sum is σ = 85675680. Its totient is φ = 28558558.

The previous prime is 57117103. The next prime is 57117121. The reversal of 57117118 is 81171175.

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

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 57117118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14279278 + ... + 14279281.

It is an arithmetic number, because the mean of its divisors is an integer number (21418920).

Almost surely, 2^57117118 is an apocalyptic number.

57117118 is a deficient number, since it is larger than the sum of its proper divisors (28558562).

57117118 is a wasteful number, since it uses less digits than its factorization.

57117118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28558561.

The product of its digits is 1960, while the sum is 31.

The square root of 57117118 is about 7557.5867841527. The cubic root of 57117118 is about 385.1135168721.

It can be divided in two parts, 571 and 17118, that added together give a square (17689 = 133²).

The spelling of 57117118 in words is "fifty-seven million, one hundred seventeen thousand, one hundred eighteen".