2571057 has 6 divisors (see below), whose sum is σ = 3713762. Its totient is φ = 1714032.

The previous prime is 2571031. The next prime is 2571059. The reversal of 2571057 is 7501752.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 62001 = 1584^2 + 249^2 .

It is not a de Polignac number, because 2571057 - 2⁸ = 2570801 is a prime.

It is a super-2 number, since 2×2571057² = 13220668194498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2571057.

It is not an unprimeable number, because it can be changed into a prime (2571059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142828 + ... + 142845.

2^2571057 is an apocalyptic number.

It is an amenable number.

2571057 is a deficient number, since it is larger than the sum of its proper divisors (1142705).

2571057 is a wasteful number, since it uses less digits than its factorization.

2571057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285679 (or 285676 counting only the distinct ones).

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

The square root of 2571057 is about 1603.4515895405. The cubic root of 2571057 is about 136.9947429030.

The spelling of 2571057 in words is "two million, five hundred seventy-one thousand, fifty-seven".