57043312 has 20 divisors (see below), whose sum is σ = 115327440. Its totient is φ = 27281408.

The previous prime is 57043253. The next prime is 57043321. The reversal of 57043312 is 21334075.

57043312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 77137 + ... + 77872.

It is an arithmetic number, because the mean of its divisors is an integer number (5766372).

Almost surely, 2^57043312 is an apocalyptic number.

It is an amenable number.

57043312 is an abundant number, since it is smaller than the sum of its proper divisors (58284128).

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

57043312 is a wasteful number, since it uses less digits than its factorization.

57043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155040 (or 155034 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 57043312 is about 7552.7022978534. The cubic root of 57043312 is about 384.9475658057.

Adding to 57043312 its reverse (21334075), we get a palindrome (78377387).

The spelling of 57043312 in words is "fifty-seven million, forty-three thousand, three hundred twelve".