564542651 has 4 divisors (see below), whose sum is σ = 564610992. Its totient is φ = 564474312.

The previous prime is 564542609. The next prime is 564542717. The reversal of 564542651 is 156245465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564542651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564542351) 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, 19751 + ... + 38976.

It is an arithmetic number, because the mean of its divisors is an integer number (141152748).

Almost surely, 2^564542651 is an apocalyptic number.

564542651 is a deficient number, since it is larger than the sum of its proper divisors (68341).

564542651 is an equidigital number, since it uses as much as digits as its factorization.

564542651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68340.

The product of its digits is 144000, while the sum is 38.

The square root of 564542651 is about 23760.1062918498. The cubic root of 564542651 is about 826.4798177433.

The spelling of 564542651 in words is "five hundred sixty-four million, five hundred forty-two thousand, six hundred fifty-one".