57556066 has 8 divisors (see below), whose sum is σ = 86906304. Its totient is φ = 28587300.

The previous prime is 57556063. The next prime is 57556133. The reversal of 57556066 is 66065575.

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

It is not an unprimeable number, because it can be changed into a prime (57556063) 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, 94990 + ... + 95593.

It is an arithmetic number, because the mean of its divisors is an integer number (10863288).

Almost surely, 2^57556066 is an apocalyptic number.

57556066 is a deficient number, since it is larger than the sum of its proper divisors (29350238).

57556066 is a wasteful number, since it uses less digits than its factorization.

57556066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190736.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 57556066 is about 7586.5714258814. The cubic root of 57556066 is about 386.0975394908.

The spelling of 57556066 in words is "fifty-seven million, five hundred fifty-six thousand, sixty-six".