561028271 has 8 divisors (see below), whose sum is σ = 595278720. Its totient is φ = 526916608.

The previous prime is 561028253. The next prime is 561028277. The reversal of 561028271 is 172820165.

561028271 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 561028271 - 2¹⁴ = 561011887 is a prime.

It is a super-2 number, since 2×561028271² = 629505441722498882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561028277) 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, 26306 + ... + 42591.

It is an arithmetic number, because the mean of its divisors is an integer number (74409840).

Almost surely, 2^561028271 is an apocalyptic number.

561028271 is a deficient number, since it is larger than the sum of its proper divisors (34250449).

561028271 is a wasteful number, since it uses less digits than its factorization.

561028271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69393.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 561028271 is about 23686.0353584132. The cubic root of 561028271 is about 824.7612512697.

The spelling of 561028271 in words is "five hundred sixty-one million, twenty-eight thousand, two hundred seventy-one".