4056571 has 4 divisors (see below), whose sum is σ = 4108000. Its totient is φ = 4005144.

The previous prime is 4056553. The next prime is 4056583. The reversal of 4056571 is 1756504.

4056571 = T₁₆₄₃ + T₁₆₄₄ + T₁₆₄₅.

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

It is a cyclic number.

It is not a de Polignac number, because 4056571 - 2⁵ = 4056539 is a prime.

4056571 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4056971) 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, 25596 + ... + 25753.

It is an arithmetic number, because the mean of its divisors is an integer number (1027000).

Almost surely, 2^4056571 is an apocalyptic number.

4056571 is the 1645-th centered triangular number.

4056571 is a deficient number, since it is larger than the sum of its proper divisors (51429).

4056571 is an equidigital number, since it uses as much as digits as its factorization.

4056571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51428.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 4056571 is about 2014.0930961602. The cubic root of 4056571 is about 159.4849453334.

The spelling of 4056571 in words is "four million, fifty-six thousand, five hundred seventy-one".