57012282 has 16 divisors (see below), whose sum is σ = 126694080. Its totient is φ = 19004076.

The previous prime is 57012257. The next prime is 57012283. The reversal of 57012282 is 28221075.

57012282 is a `hidden beast` number, since 570 + 12 + 2 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (57012283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527838 + ... + 527945.

It is an arithmetic number, because the mean of its divisors is an integer number (7918380).

Almost surely, 2^57012282 is an apocalyptic number.

57012282 is an abundant number, since it is smaller than the sum of its proper divisors (69681798).

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

57012282 is a wasteful number, since it uses less digits than its factorization.

57012282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055794 (or 1055788 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 57012282 is about 7550.6477867796. The cubic root of 57012282 is about 384.8777528331.

The spelling of 57012282 in words is "fifty-seven million, twelve thousand, two hundred eighty-two".