57040066 has 16 divisors (see below), whose sum is σ = 90788256. Its totient is φ = 26784576.

The previous prime is 57040043. The next prime is 57040073. The reversal of 57040066 is 66004075.

57040066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17065 + ... + 20131.

It is an arithmetic number, because the mean of its divisors is an integer number (5674266).

Almost surely, 2^57040066 is an apocalyptic number.

57040066 is a deficient number, since it is larger than the sum of its proper divisors (33748190).

57040066 is a wasteful number, since it uses less digits than its factorization.

57040066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 57040066 is about 7552.4874048223. The cubic root of 57040066 is about 384.9402639652.

The spelling of 57040066 in words is "fifty-seven million, forty thousand, sixty-six".