564217225 has 24 divisors (see below), whose sum is σ = 821947392. Its totient is φ = 378772800.

The previous prime is 564217223. The next prime is 564217231. The reversal of 564217225 is 522712465.

It is not a de Polignac number, because 564217225 - 2¹ = 564217223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564217223) 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 23 ways as a sum of consecutive naturals, for example, 75337 + ... + 82486.

It is an arithmetic number, because the mean of its divisors is an integer number (34247808).

Almost surely, 2^564217225 is an apocalyptic number.

564217225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564217225 is a deficient number, since it is larger than the sum of its proper divisors (257730167).

564217225 is a wasteful number, since it uses less digits than its factorization.

564217225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157857 (or 157852 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 564217225 is about 23753.2571450738. The cubic root of 564217225 is about 826.3209813726.

The spelling of 564217225 in words is "five hundred sixty-four million, two hundred seventeen thousand, two hundred twenty-five".