365563 has 8 divisors (see below), whose sum is σ = 403200. Its totient is φ = 328680.

The previous prime is 365557. The next prime is 365567.

365563 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 365563 - 2⁵ = 365531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2³⁶⁵⁵⁶³ is an apocalyptic number.

365563 is a deficient number, since it is larger than the sum of its proper divisors (37637).

365563 is a wasteful number, since it uses less digits than its factorization.

365563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377.

The product of its digits is 8100, while the sum is 28.

The square root of 365563 is about 604.6180612585. The cubic root of 365563 is about 71.5024205743.

The spelling of 365563 in words is "three hundred sixty-five thousand, five hundred sixty-three".