57043530 has 96 divisors (see below), whose sum is σ = 153653760. Its totient is φ = 14676480.

The previous prime is 57043523. The next prime is 57043531. The reversal of 57043530 is 3534075.

It is a happy number.

57043530 is a `hidden beast` number, since 570 + 43 + 53 + 0 = 666.

57043530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57043494 and 57043503.

It is not an unprimeable number, because it can be changed into a prime (57043531) 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 47 ways as a sum of consecutive naturals, for example, 504754 + ... + 504866.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^57043530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57043530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76826880).

57043530 is an abundant number, since it is smaller than the sum of its proper divisors (96610230).

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

57043530 is a wasteful number, since it uses less digits than its factorization.

57043530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57043530 is about 7552.7167297602. The cubic root of 57043530 is about 384.9480561843.

It can be divided in two parts, 570 and 43530, that added together give a square (44100 = 210²).

The spelling of 57043530 in words is "fifty-seven million, forty-three thousand, five hundred thirty".