57186012 has 48 divisors (see below), whose sum is σ = 145134080. Its totient is φ = 17419968.

The previous prime is 57186007. The next prime is 57186013. The reversal of 57186012 is 21068175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57186013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14289 + ... + 17847.

Almost surely, 2^57186012 is an apocalyptic number.

57186012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57186012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72567040).

57186012 is an abundant number, since it is smaller than the sum of its proper divisors (87948068).

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

57186012 is a wasteful number, since it uses less digits than its factorization.

57186012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682 (or 3680 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 57186012 is about 7562.1433469619. The cubic root of 57186012 is about 385.2682944658.

The spelling of 57186012 in words is "fifty-seven million, one hundred eighty-six thousand, twelve".