57543020 has 24 divisors (see below), whose sum is σ = 127201200. Its totient is φ = 21805632.

The previous prime is 57543007. The next prime is 57543041. The reversal of 57543020 is 2034575.

57543020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57543020² = 6622398301440800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 75335 + ... + 76094.

It is an arithmetic number, because the mean of its divisors is an integer number (5300050).

Almost surely, 2^57543020 is an apocalyptic number.

It is an amenable number.

57543020 is an abundant number, since it is smaller than the sum of its proper divisors (69658180).

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

57543020 is a wasteful number, since it uses less digits than its factorization.

57543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151457 (or 151455 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 57543020 is about 7585.7115684687. The cubic root of 57543020 is about 386.0683655654.

Adding to 57543020 its reverse (2034575), we get a palindrome (59577595).

The spelling of 57543020 in words is "fifty-seven million, five hundred forty-three thousand, twenty".