57105012 has 12 divisors (see below), whose sum is σ = 133245056. Its totient is φ = 19035000.

The previous prime is 57105011. The next prime is 57105017. The reversal of 57105012 is 21050175.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 57105012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57105011) 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, 2379364 + ... + 2379387.

Almost surely, 2^57105012 is an apocalyptic number.

It is an amenable number.

57105012 is an abundant number, since it is smaller than the sum of its proper divisors (76140044).

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

57105012 is a wasteful number, since it uses less digits than its factorization.

57105012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758758 (or 4758756 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 57105012 is about 7556.7858246744. The cubic root of 57105012 is about 385.0863066193.

Adding to 57105012 its reverse (21050175), we get a palindrome (78155187).

It can be divided in two parts, 5 and 7105012, that added together give a palindrome (7105017).

The spelling of 57105012 in words is "fifty-seven million, one hundred five thousand, twelve".