561573464 has 16 divisors (see below), whose sum is σ = 1077438120. Its totient is φ = 274256640.

The previous prime is 561573413. The next prime is 561573521. The reversal of 561573464 is 464375165.

561573464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815897 + ... + 816584.

Almost surely, 2^561573464 is an apocalyptic number.

It is an amenable number.

561573464 is a deficient number, since it is larger than the sum of its proper divisors (515864656).

561573464 is a wasteful number, since it uses less digits than its factorization.

561573464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632530 (or 1632526 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 561573464 is about 23697.5413070639. The cubic root of 561573464 is about 825.0283254431.

The spelling of 561573464 in words is "five hundred sixty-one million, five hundred seventy-three thousand, four hundred sixty-four".