57558066 has 8 divisors (see below), whose sum is σ = 115116144. Its totient is φ = 19186020.

The previous prime is 57558047. The next prime is 57558089. The reversal of 57558066 is 66085575.

It is a sphenic number, since it is the product of 3 distinct primes.

57558066 is an admirable 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, 4796500 + ... + 4796511.

It is an arithmetic number, because the mean of its divisors is an integer number (14389518).

Almost surely, 2^57558066 is an apocalyptic number.

57558066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57558066 is a wasteful number, since it uses less digits than its factorization.

57558066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593016.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 57558066 is about 7586.7032365844. The cubic root of 57558066 is about 386.1020115716.

The spelling of 57558066 in words is "fifty-seven million, five hundred fifty-eight thousand, sixty-six".