566551604 has 6 divisors (see below), whose sum is σ = 991465314. Its totient is φ = 283275800.

The previous prime is 566551577. The next prime is 566551619. The reversal of 566551604 is 406155665.

It can be written as a sum of positive squares in only one way, i.e., 397603600 + 168948004 = 19940^2 + 12998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70818947 + ... + 70818954.

It is an arithmetic number, because the mean of its divisors is an integer number (165244219).

Almost surely, 2^566551604 is an apocalyptic number.

It is an amenable number.

566551604 is a deficient number, since it is larger than the sum of its proper divisors (424913710).

566551604 is a wasteful number, since it uses less digits than its factorization.

566551604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141637905 (or 141637903 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 566551604 is about 23802.3445063716. The cubic root of 566551604 is about 827.4590136173.

The spelling of 566551604 in words is "five hundred sixty-six million, five hundred fifty-one thousand, six hundred four".