564661532 has 12 divisors (see below), whose sum is σ = 1040166120. Its totient is φ = 267471216.

The previous prime is 564661501. The next prime is 564661543. The reversal of 564661532 is 235166465.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714803 + ... + 3714954.

It is an arithmetic number, because the mean of its divisors is an integer number (86680510).

Almost surely, 2^564661532 is an apocalyptic number.

It is an amenable number.

564661532 is a deficient number, since it is larger than the sum of its proper divisors (475504588).

564661532 is a wasteful number, since it uses less digits than its factorization.

564661532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7429780 (or 7429778 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 564661532 is about 23762.6078535164. The cubic root of 564661532 is about 826.5378268539.

The spelling of 564661532 in words is "five hundred sixty-four million, six hundred sixty-one thousand, five hundred thirty-two".