564426561 has 8 divisors (see below), whose sum is σ = 755021344. Its totient is φ = 375058080.

The previous prime is 564426553. The next prime is 564426563. The reversal of 564426561 is 165624465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 564426561 - 2³ = 564426553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564426563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305500 + ... + 307341.

It is an arithmetic number, because the mean of its divisors is an integer number (94377668).

Almost surely, 2^564426561 is an apocalyptic number.

It is an amenable number.

564426561 is a deficient number, since it is larger than the sum of its proper divisors (190594783).

564426561 is a wasteful number, since it uses less digits than its factorization.

564426561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613151.

The product of its digits is 172800, while the sum is 39.

The square root of 564426561 is about 23757.6632057953. The cubic root of 564426561 is about 826.4231626678.

The spelling of 564426561 in words is "five hundred sixty-four million, four hundred twenty-six thousand, five hundred sixty-one".