57520571 has 4 divisors (see below), whose sum is σ = 60904152. Its totient is φ = 54136992.

The previous prime is 57520549. The next prime is 57520583. The reversal of 57520571 is 17502575.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57520571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57520501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1691765 + ... + 1691798.

It is an arithmetic number, because the mean of its divisors is an integer number (15226038).

Almost surely, 2^57520571 is an apocalyptic number.

57520571 is a deficient number, since it is larger than the sum of its proper divisors (3383581).

57520571 is a wasteful number, since it uses less digits than its factorization.

57520571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383580.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 57520571 is about 7584.2317343288. The cubic root of 57520571 is about 386.0181539960.

The spelling of 57520571 in words is "fifty-seven million, five hundred twenty thousand, five hundred seventy-one".