561466305 has 24 divisors (see below), whose sum is σ = 999514152. Its totient is φ = 291354624.

The previous prime is 561466291. The next prime is 561466313. The reversal of 561466305 is 503664165.

561466305 is a `hidden beast` number, since 5 + 6 + 14 + 6 + 630 + 5 = 666.

561466305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 255776049 + 305690256 = 15993^2 + 17484^2 .

It is not a de Polignac number, because 561466305 - 2⁸ = 561466049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561466305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166944 + ... + 170273.

It is an arithmetic number, because the mean of its divisors is an integer number (41646423).

Almost surely, 2^561466305 is an apocalyptic number.

It is an amenable number.

561466305 is a deficient number, since it is larger than the sum of its proper divisors (438047847).

561466305 is a wasteful number, since it uses less digits than its factorization.

561466305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337265 (or 337262 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 561466305 is about 23695.2802262391. The cubic root of 561466305 is about 824.9758450228.

The spelling of 561466305 in words is "five hundred sixty-one million, four hundred sixty-six thousand, three hundred five".