564220271 has 4 divisors (see below), whose sum is σ = 564696792. Its totient is φ = 563743752.

The previous prime is 564220249. The next prime is 564220331. The reversal of 564220271 is 172022465.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 564220271 - 2⁶ = 564220207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564220231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236480 + ... + 238853.

It is an arithmetic number, because the mean of its divisors is an integer number (141174198).

Almost surely, 2^564220271 is an apocalyptic number.

564220271 is a deficient number, since it is larger than the sum of its proper divisors (476521).

564220271 is a wasteful number, since it uses less digits than its factorization.

564220271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476520.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 564220271 is about 23753.3212625098. The cubic root of 564220271 is about 826.3224683703.

The spelling of 564220271 in words is "five hundred sixty-four million, two hundred twenty thousand, two hundred seventy-one".