564375636 has 72 divisors (see below), whose sum is σ = 1559061504. Its totient is φ = 170720640.

The previous prime is 564375607. The next prime is 564375649. The reversal of 564375636 is 636573465.

564375636 is a `hidden beast` number, since 5 + 6 + 4 + 3 + 7 + 5 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 564375591 and 564375600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338541 + ... + 340203.

It is an arithmetic number, because the mean of its divisors is an integer number (21653632).

Almost surely, 2^564375636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564375636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779530752).

564375636 is an abundant number, since it is smaller than the sum of its proper divisors (994685868).

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

564375636 is a wasteful number, since it uses less digits than its factorization.

564375636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2536 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 45.

The square root of 564375636 is about 23756.5914221717. The cubic root of 564375636 is about 826.3983074323.

The spelling of 564375636 in words is "five hundred sixty-four million, three hundred seventy-five thousand, six hundred thirty-six".