564508749 has 16 divisors (see below), whose sum is σ = 910804608. Its totient is φ = 303601152.

The previous prime is 564508739. The next prime is 564508771. The reversal of 564508749 is 947805465.

It is not a de Polignac number, because 564508749 - 2⁴ = 564508733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 564508698 and 564508707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564508709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790272 + ... + 790985.

It is an arithmetic number, because the mean of its divisors is an integer number (56925288).

Almost surely, 2^564508749 is an apocalyptic number.

It is an amenable number.

564508749 is a deficient number, since it is larger than the sum of its proper divisors (346295859).

564508749 is a wasteful number, since it uses less digits than its factorization.

564508749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581284.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 564508749 is about 23759.3928584044. The cubic root of 564508749 is about 826.4632734487.

The spelling of 564508749 in words is "five hundred sixty-four million, five hundred eight thousand, seven hundred forty-nine".