564651506 has 8 divisors (see below), whose sum is σ = 862958124. Its totient is φ = 276998800.

The previous prime is 564651491. The next prime is 564651517. The reversal of 564651506 is 605156465.

It can be written as a sum of positive squares in 2 ways, for example, as 549480481 + 15171025 = 23441^2 + 3895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 564651506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663345 + ... + 2663556.

Almost surely, 2^564651506 is an apocalyptic number.

564651506 is a deficient number, since it is larger than the sum of its proper divisors (298306618).

564651506 is a wasteful number, since it uses less digits than its factorization.

564651506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326956.

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

The square root of 564651506 is about 23762.3968908862. The cubic root of 564651506 is about 826.5329348866.

The spelling of 564651506 in words is "five hundred sixty-four million, six hundred fifty-one thousand, five hundred six".