565165601 has 32 divisors (see below), whose sum is σ = 785030400. Its totient is φ = 392474880.

The previous prime is 565165519. The next prime is 565165613. The reversal of 565165601 is 106561565.

It is not a de Polignac number, because 565165601 - 2¹⁴ = 565149217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (565165201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19295 + ... + 38763.

It is an arithmetic number, because the mean of its divisors is an integer number (24532200).

Almost surely, 2^565165601 is an apocalyptic number.

It is an amenable number.

565165601 is a deficient number, since it is larger than the sum of its proper divisors (219864799).

565165601 is a wasteful number, since it uses less digits than its factorization.

565165601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19529.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 565165601 is about 23773.2118360141. The cubic root of 565165601 is about 826.7837016886.

The spelling of 565165601 in words is "five hundred sixty-five million, one hundred sixty-five thousand, six hundred one".