564966478 has 4 divisors (see below), whose sum is σ = 847449720. Its totient is φ = 282483238.

The previous prime is 564966469. The next prime is 564966497. The reversal of 564966478 is 874669465.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141241618 + ... + 141241621.

It is an arithmetic number, because the mean of its divisors is an integer number (211862430).

Almost surely, 2^564966478 is an apocalyptic number.

564966478 is a deficient number, since it is larger than the sum of its proper divisors (282483242).

564966478 is a wasteful number, since it uses less digits than its factorization.

564966478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282483241.

The product of its digits is 8709120, while the sum is 55.

The square root of 564966478 is about 23769.0234969803. The cubic root of 564966478 is about 826.6865909249.

It can be divided in two parts, 5649 and 66478, that added together give a palindrome (72127).

The spelling of 564966478 in words is "five hundred sixty-four million, nine hundred sixty-six thousand, four hundred seventy-eight".