564156220 has 48 divisors (see below), whose sum is σ = 1256411520. Its totient is φ = 212050944.

The previous prime is 564156217. The next prime is 564156223. The reversal of 564156220 is 22651465.

It is an interprime number because it is at equal distance from previous prime (564156217) and next prime (564156223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564156223) 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 15 ways as a sum of consecutive naturals, for example, 352462 + ... + 354058.

It is an arithmetic number, because the mean of its divisors is an integer number (26175240).

Almost surely, 2^564156220 is an apocalyptic number.

It is an amenable number.

564156220 is an abundant number, since it is smaller than the sum of its proper divisors (692255300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

564156220 is a wasteful number, since it uses less digits than its factorization.

564156220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 564156220 is about 23751.9729706818. The cubic root of 564156220 is about 826.2911987959.

The spelling of 564156220 in words is "five hundred sixty-four million, one hundred fifty-six thousand, two hundred twenty".