564220461 has 16 divisors (see below), whose sum is σ = 861200384. Its totient is φ = 321873264.

The previous prime is 564220453. The next prime is 564220543. The reversal of 564220461 is 164022465.

It is not a de Polignac number, because 564220461 - 2³ = 564220453 is a prime.

It is a super-2 number, since 2×564220461² = 636689457222105042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564220421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9385 + ... + 34878.

It is an arithmetic number, because the mean of its divisors is an integer number (53825024).

Almost surely, 2^564220461 is an apocalyptic number.

It is an amenable number.

564220461 is a deficient number, since it is larger than the sum of its proper divisors (296979923).

564220461 is a wasteful number, since it uses less digits than its factorization.

564220461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44880.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 564220461 is about 23753.3252619502. The cubic root of 564220461 is about 826.3225611245.

The spelling of 564220461 in words is "five hundred sixty-four million, two hundred twenty thousand, four hundred sixty-one".