561541463 has 4 divisors (see below), whose sum is σ = 641761680. Its totient is φ = 481321248.

The previous prime is 561541441. The next prime is 561541469. The reversal of 561541463 is 364145165.

561541463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 561541463 - 2²⁰ = 560492887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561541469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40110098 + ... + 40110111.

It is an arithmetic number, because the mean of its divisors is an integer number (160440420).

Almost surely, 2^561541463 is an apocalyptic number.

561541463 is a deficient number, since it is larger than the sum of its proper divisors (80220217).

561541463 is an equidigital number, since it uses as much as digits as its factorization.

561541463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80220216.

The product of its digits is 43200, while the sum is 35.

The square root of 561541463 is about 23696.8661008159. The cubic root of 561541463 is about 825.0126538616.

The spelling of 561541463 in words is "five hundred sixty-one million, five hundred forty-one thousand, four hundred sixty-three".