57520645 has 32 divisors (see below), whose sum is σ = 85575168. Its totient is φ = 36142848.

The previous prime is 57520583. The next prime is 57520649. The reversal of 57520645 is 54602575.

57520645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57520645 - 2⁷ = 57520517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57520645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57520649) 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 31 ways as a sum of consecutive naturals, for example, 75607 + ... + 76363.

It is an arithmetic number, because the mean of its divisors is an integer number (2674224).

Almost surely, 2^57520645 is an apocalyptic number.

It is an amenable number.

57520645 is a deficient number, since it is larger than the sum of its proper divisors (28054523).

57520645 is a wasteful number, since it uses less digits than its factorization.

57520645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 57520645 is about 7584.2366128701. The cubic root of 57520645 is about 386.0183195329.

The spelling of 57520645 in words is "fifty-seven million, five hundred twenty thousand, six hundred forty-five".