57655340 has 12 divisors (see below), whose sum is σ = 121076256. Its totient is φ = 23062128.

The previous prime is 57655321. The next prime is 57655343. The reversal of 57655340 is 4355675.

57655340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57655340.

It is not an unprimeable number, because it can be changed into a prime (57655343) 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 3 ways as a sum of consecutive naturals, for example, 1441364 + ... + 1441403.

It is an arithmetic number, because the mean of its divisors is an integer number (10089688).

Almost surely, 2^57655340 is an apocalyptic number.

It is an amenable number.

57655340 is an abundant number, since it is smaller than the sum of its proper divisors (63420916).

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

57655340 is a wasteful number, since it uses less digits than its factorization.

57655340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882776 (or 2882774 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 57655340 is about 7593.1113517451. Note that the first 3 decimals coincide. The cubic root of 57655340 is about 386.3193952321.

The spelling of 57655340 in words is "fifty-seven million, six hundred fifty-five thousand, three hundred forty".