57066042 has 64 divisors (see below), whose sum is σ = 133031808. Its totient is φ = 16128000.

The previous prime is 57066041. The next prime is 57066077. The reversal of 57066042 is 24066075.

57066042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57066041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 202942 + ... + 203222.

It is an arithmetic number, because the mean of its divisors is an integer number (2078622).

Almost surely, 2^57066042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57066042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66515904).

57066042 is an abundant number, since it is smaller than the sum of its proper divisors (75965766).

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

57066042 is a wasteful number, since it uses less digits than its factorization.

57066042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 57066042 is about 7554.2069074126. The cubic root of 57066042 is about 384.9986889257.

The spelling of 57066042 in words is "fifty-seven million, sixty-six thousand, forty-two".