565290649 has 16 divisors (see below), whose sum is σ = 729083520. Its totient is φ = 425295360.

The previous prime is 565290643. The next prime is 565290703. The reversal of 565290649 is 946092565.

It is not a de Polignac number, because 565290649 - 2⁵ = 565290617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 565290599 and 565290608.

It is not an unprimeable number, because it can be changed into a prime (565290643) 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, 124344 + ... + 128809.

It is an arithmetic number, because the mean of its divisors is an integer number (45567720).

Almost surely, 2^565290649 is an apocalyptic number.

It is an amenable number.

565290649 is a deficient number, since it is larger than the sum of its proper divisors (163792871).

565290649 is a wasteful number, since it uses less digits than its factorization.

565290649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253200.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 565290649 is about 23775.8417096009. The cubic root of 565290649 is about 826.8446749821.

The spelling of 565290649 in words is "five hundred sixty-five million, two hundred ninety thousand, six hundred forty-nine".