571066 has 4 divisors (see below), whose sum is σ = 856602. Its totient is φ = 285532.

The previous prime is 571049. The next prime is 571069. The reversal of 571066 is 660175.

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

It can be written as a sum of positive squares in only one way, i.e., 326041 + 245025 = 571^2 + 495^2 .

It is a super-2 number, since 2×571066² = 652232752712, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 571066.

It is not an unprimeable number, because it can be changed into a prime (571069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142765 + ... + 142768.

2⁵⁷¹⁰⁶⁶ is an apocalyptic number.

571066 is a deficient number, since it is larger than the sum of its proper divisors (285536).

571066 is a wasteful number, since it uses less digits than its factorization.

571066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285535.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 571066 is about 755.6890895071. The cubic root of 571066 is about 82.9650987921.

It can be divided in two parts, 5710 and 66, that added together give a square (5776 = 76²).

The spelling of 571066 in words is "five hundred seventy-one thousand, sixty-six".