4256571 has 8 divisors (see below), whose sum is σ = 6191424. Its totient is φ = 2579720.

The previous prime is 4256563. The next prime is 4256573. The reversal of 4256571 is 1756524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4256571 - 2³ = 4256563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4256573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64461 + ... + 64526.

It is an arithmetic number, because the mean of its divisors is an integer number (773928).

Almost surely, 2^4256571 is an apocalyptic number.

4256571 is a deficient number, since it is larger than the sum of its proper divisors (1934853).

4256571 is a wasteful number, since it uses less digits than its factorization.

4256571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129001.

The product of its digits is 8400, while the sum is 30.

The square root of 4256571 is about 2063.1458988642. The cubic root of 4256571 is about 162.0640274269.

It can be divided in two parts, 425 and 6571, that added together give a palindrome (6996).

The spelling of 4256571 in words is "four million, two hundred fifty-six thousand, five hundred seventy-one".