565564737 has 16 divisors (see below), whose sum is σ = 769913280. Its totient is φ = 369180672.

The previous prime is 565564723. The next prime is 565564781. The reversal of 565564737 is 737465565.

It is not a de Polignac number, because 565564737 - 2⁶ = 565564673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (565569737) 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, 39273 + ... + 51705.

It is an arithmetic number, because the mean of its divisors is an integer number (48119580).

Almost surely, 2^565564737 is an apocalyptic number.

It is an amenable number.

565564737 is a deficient number, since it is larger than the sum of its proper divisors (204348543).

565564737 is a wasteful number, since it uses less digits than its factorization.

565564737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752.

The product of its digits is 2646000, while the sum is 48.

The square root of 565564737 is about 23781.6050131189. The cubic root of 565564737 is about 826.9782885994.

The spelling of 565564737 in words is "five hundred sixty-five million, five hundred sixty-four thousand, seven hundred thirty-seven".