561585471 has 16 divisors (see below), whose sum is σ = 755568000. Its totient is φ = 371011808.

The previous prime is 561585467. The next prime is 561585473. The reversal of 561585471 is 174585165.

It is a cyclic number.

It is not a de Polignac number, because 561585471 - 2² = 561585467 is a prime.

It is a super-3 number, since 3×561585471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561585473) 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 15 ways as a sum of consecutive naturals, for example, 168580 + ... + 171878.

It is an arithmetic number, because the mean of its divisors is an integer number (47223000).

Almost surely, 2^561585471 is an apocalyptic number.

561585471 is a deficient number, since it is larger than the sum of its proper divisors (193982529).

561585471 is a wasteful number, since it uses less digits than its factorization.

561585471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798.

The product of its digits is 168000, while the sum is 42.

The square root of 561585471 is about 23697.7946442280. The cubic root of 561585471 is about 825.0342053770.

The spelling of 561585471 in words is "five hundred sixty-one million, five hundred eighty-five thousand, four hundred seventy-one".