568261 has 8 divisors (see below), whose sum is σ = 612864. Its totient is φ = 525360.

The previous prime is 568241. The next prime is 568273. The reversal of 568261 is 162865.

568261 = T₆₁₄ + T₆₁₅ + T₆₁₆.

568261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 568261 - 2⁷ = 568133 is a prime.

It is a Duffinian number.

568261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568201) 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, 315 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2⁵⁶⁸²⁶¹ is an apocalyptic number.

568261 is the 616-th centered triangular number.

It is an amenable number.

568261 is a deficient number, since it is larger than the sum of its proper divisors (44603).

568261 is a wasteful number, since it uses less digits than its factorization.

568261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its digits is 2880, while the sum is 28.

The square root of 568261 is about 753.8308828909. The cubic root of 568261 is about 82.8290379455.

The spelling of 568261 in words is "five hundred sixty-eight thousand, two hundred sixty-one".