564560421 has 8 divisors (see below), whose sum is σ = 753599424. Its totient is φ = 375947520.

The previous prime is 564560419. The next prime is 564560431. The reversal of 564560421 is 124065465.

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

It is not a de Polignac number, because 564560421 - 2¹ = 564560419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564560401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103420 + ... + 108741.

It is an arithmetic number, because the mean of its divisors is an integer number (94199928).

Almost surely, 2^564560421 is an apocalyptic number.

It is an amenable number.

564560421 is a deficient number, since it is larger than the sum of its proper divisors (189039003).

564560421 is a wasteful number, since it uses less digits than its factorization.

564560421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213051.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 564560421 is about 23760.4802350458. The cubic root of 564560421 is about 826.4884893008.

It can be divided in two parts, 5645 and 60421, that added together give a palindrome (66066).

The spelling of 564560421 in words is "five hundred sixty-four million, five hundred sixty thousand, four hundred twenty-one".