2057571 has 6 divisors (see below), whose sum is σ = 2972060. Its totient is φ = 1371708.

The previous prime is 2057569. The next prime is 2057597. The reversal of 2057571 is 1757502.

2057571 is a `hidden beast` number, since 20 + 575 + 71 = 666.

It is not a de Polignac number, because 2057571 - 2¹ = 2057569 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057371) 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 5 ways as a sum of consecutive naturals, for example, 114301 + ... + 114318.

2^2057571 is an apocalyptic number.

2057571 is a deficient number, since it is larger than the sum of its proper divisors (914489).

2057571 is a wasteful number, since it uses less digits than its factorization.

2057571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228625 (or 228622 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 2057571 is about 1434.4235776088. The cubic root of 2057571 is about 127.1896025084.

It can be divided in two parts, 2057 and 571, that added together give a triangular number (2628 = T₇₂).

The spelling of 2057571 in words is "two million, fifty-seven thousand, five hundred seventy-one".