564420612520 has 16 divisors (see below), whose sum is σ = 1269946378260. Its totient is φ = 225768244992.

The previous prime is 564420612499. The next prime is 564420612521. The reversal of 564420612520 is 25216024465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 504278935876 + 60141676644 = 710126^2 + 245238^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 564420612520.

It is not an unprimeable number, because it can be changed into a prime (564420612521) 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, 7055257617 + ... + 7055257696.

Almost surely, 2^564420612520 is an apocalyptic number.

It is an amenable number.

564420612520 is an abundant number, since it is smaller than the sum of its proper divisors (705525765740).

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

564420612520 is a wasteful number, since it uses less digits than its factorization.

564420612520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110515324 (or 14110515320 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 564420612520 its reverse (25216024465), we get a palindrome (589636636985).

The spelling of 564420612520 in words is "five hundred sixty-four billion, four hundred twenty million, six hundred twelve thousand, five hundred twenty".